I understand your point though. Of course a US company that is only ever going to sell in the US does not need to bother with international marks.
If my house burns down and a widget with only a CE mark is blamed as the source, my insurance company will consider that to be the equivalent of it having no marking at all.
If a company wants to sell a product globally including the USA, then CE isn't enough to satisfy the safety boffins.
The world is a big place, and the US isn't alone in this way: Lots of other countries also don't care about an isolated CE mark, like Canada and Mexico here in North America.
Some other large, important markets like Japan and Brazil are this way, too.
Acceptance of CE is not universal.
Even things ordered directly from China have a CE mark!
I guess you have never really visited Canada and looked at the marks on the things you use.
And it kind of removes value from your opinion about the other countries of the world. Sorry.
There's a lot that I'm not saying.
What I am saying is that there are places in the world where the CE mark (and the presence or absence of it) means nothing, and that Canada is one such place.
Y'all have your own safety marks up there.
CSA is a big one -- you've had that organization up there and doing great work for over a century. cUL is another very common, accepted mark in Canada.
There are many more. Here's the list: https://scc-ccn.ca/resources/publications/recognized-canadia...
But, again: The Standards Council of Canada doesn't recognize the CE mark for devices used in Canada. That's not a thing that they do.
Also, I'd be surprised if all those Chinese devices have actually earned that CE mark.