The US is able to implement seemingly big changes quickly, but they're not necessarily as big as you think them to be. "Marriage equality" (a name many disagree with, by the way) is not a massive change, for example. It's a tiny change that, while providing some benefit to some gay people, does not fundamentally change power structures. In fact, it strengthens an existing one: the cultural institution of marriage.
> 11) Where the murder rate for 99% of the population in cities is closer to 2/100k (and half that in rural areas), on par nicer urban parts of Europe.
If you exclude the places where murder happens most, of course you appear to have a low murder rate.
> 12) Where unarmed minorities are not regularly shot dead by the police.
Perhaps you have not paid attention to the news. Quite literally hundreds of black people have been shot by US police this year so far. People who, if their skin was a different colour, would not have been shot.
> 13) Where minorities have a greater opportunity for success than in nearly any other nation.
This statement would be amusing were it not so terrifying. Minorities in the US, once in the poverty trap, have virtually no chance of getting out of it. Even those outside it face significant obstacles in getting anywhere.
> See: the vast wealth and prosperity of Asians in America, they're the best off of any race of people here. In fact, American Asians are among the best off of any people anywhere on this planet.
Asians in America are a relatively privileged minority. Now look at how other ethnic groups fare. Not so rosy.
> 14) Where you have more opportunities than in any other nation, to make any kind of life for yourself that you want.
If you're rich.