It is one's own choice to believe in hateful ideology like racism, sexism or transphobia. No one forces anyone to believe in any kind of ideology - therefore the focus and the blame should be on the people who willingly decide to believe hateful ideology (and, obviously, the spreaders of such ideology).
The US has been willing to go to war to fight the Nazi regime. For me, it is inconceivable how wide swaths of the US could have ended up with welcoming the successors of the Nazi ideology, not even a century later.