[1]http://en.wikipedia.org/wiki/Asterix
[2]http://en.wikipedia.org/wiki/Gaston_%28comics%29
[3]http://en.wikipedia.org/wiki/Spirou_et_Fantasio
[4]http://en.wikipedia.org/wiki/Lucky_Luke
[1]http://en.wikipedia.org/wiki/Asterix
[2]http://en.wikipedia.org/wiki/Gaston_%28comics%29
[3]http://en.wikipedia.org/wiki/Spirou_et_Fantasio
[4]http://en.wikipedia.org/wiki/Lucky_Luke
There's other reasons of course as well - notably the rise of the collectors market, but the USA today is still overwhelmingly dominated by superheroes in the comics market.
One I grew up with (that I probably shouldn't have had as a child) was the Conan the Barbarian comics. Definitely not a superhero title, and definitely skewed towards the adult demographic.
Asterix has tried to penetrate the U.S. market several times, but the style says "newspaper comic strip" to Americans and that's where it got stuck.
Prince Valiant is also an American comic, shown mostly in newspapers.
Spirou et Fantasio looks excellent, I don't think there's ever been a concerted effort to translate the title into English.
Same with Gaston.
I personally think there's a deep well of wonderful French comics that have yet to really make it into the American market: Valérian and Laureline, Blueberry, Arzach, etc. Where the artwork and writing are wonderful. But then again, I think Arzach and other Moebius works ended up here under the Heavy Metal books, which are widely known among late-teen early adult readers.
It's not the artist, it's the environment. Moebius did amazing and innovative comics for the French and Belgian markets. Guess what he did once arrived in the US: http://en.wikipedia.org/wiki/Jean_Giraud#Marvel_Comics
It's a British English translation but I think any UK/US differences will be fairly small compared to the cultural differences from the original source era. I have books 2 and 5 and to be honest the racial stereotypes in book #2, from 1987, are more troubling than anything I remember in book #5, from 1952!
I almost keep wanting to take some time to learn some basic French so I can read French comics. (I know it sounds kind of trite, but whatever motivates I suppose).
I was surprised the first time I went to France, I was more or less able to make out the gist of the majority of the Museum placards and explanations when there wasn't an English translation available. Common ancestor, French influence, Latin and all that.
...but Marvel Comics is superheros. Marvel is owned by Disney, and Disney has a huge marketing budget. DC Comics is superheros...owned by Warner Brothers.
EDIT: yeah...none of those that I mentioned are remotely for kids. Hmmm.
Of course none of them was ever that widely known (apart from TMNT after it stopped being a comic), so the original point about the US and superheroes certainly remains.
I imagine it's partly due to the legacy of the CCA [http://en.wikipedia.org/wiki/Comics_Code_Authority].
Also I think everyone in Sweden has heard of Goliat. [2]
[1] http://sv.wikipedia.org/wiki/Valhall_%28tecknad_serie%29
The Marvel depiction of Loki is not as one-dimensional as that of Lex Luthor, for example, but the underlying myths actually depicts him a bit more nuanced still. And while the Gods are generally good, they are also at times foolish, funny and arrogant.
Not all comic superheroes are two dimensional.
"Although the creation of the superhero was the Golden Age's most significant contribution to pop culture, many genres appeared on the newsstands, including humor, Western, romance, and jungle stories. The Steranko History of Comics 2 notes that it was the non-superhero characters of Dell Comics — most notably the licensed Walt Disney animated character comics — that outsold all the supermen of the day. Dell Comics, featuring such licensed movie and literary properties as Mickey Mouse, Donald Duck, Roy Rogers, and Tarzan, boasted circulations of over two million copies a month, and Donald Duck writer-artist Carl Barks is considered one of the era's major talents."
http://en.wikipedia.org/wiki/Golden_Age_of_Comic_Books
There are also Wikipedia pages for Western and Romance comics.
So there used to be other kinds of comics in the U.S. As mentioned elsewhere in this discussion, the Comics Code Authority seems to have marked the end of non-superhero comics.
Later I spent a huge amount of time on http://en.wikipedia.org/wiki/L%C3%A9onard_(comics)
I think Gaston is still unavailable in English - I'm not such a fan of Spirou and Fantasio but I recently bought Cinebook's "The Marsupliami Thieves" as it was the only Franquin book available in English, sadly.
By the way, a recent HN thread on internationalization mentioned how few really well localized film translations there are and gave Shrek and Frozen as examples of good ones. The English translations of Asterix were brilliant and full of English-specific puns, presumably replacing original French puns (I have read some of them in French but my French is not really good enough for wordplay).
(edit: Although obviously the UK has its own tradition of kids-including-girls-friendly comics: Beano, Dandy, and many others. And for a modern equivalent I like the Phoenix comic [1]. But comic book shops here are mostly also very full of superhero comics and adult manga and not young-girl-friendly.)
[0] http://www.cinebook.co.uk [1] http://www.thephoenixcomic.co.uk/
Like you, I enjoy Gaston significantly more than Spirou; he also has a more adult work called Idées noires (Dark Thoughts), which is filled with great (and often disturbing) dark humor. It's probably not translated to English either, alas.
Some US newspaper strip artists end up earning more from Scandinavia (aggregate potential market of about 25 million) than the US because of this.
It is a culture thing. Growing up in latinamerica in the 80's and 90's meant that I have access to four of the comics you mention and the ones coming from USA. Asterix's stories for instance were cool but I still preferred reading Superman, and I guess that's because in my original country we were closer to USA's culture than French culture.
How is Asterix not a superhero, though?
Calvin and Hobbes, Marsupilami, The Smurfs, Superlopez, Asterix, Gaston, Spirou, Lucky luke, Zipi y Zape, Rompetechos, Mortadelo y Filemón, El botones sacarino, Tintin...