Every movement in history has hypocrites that follow it, and give the movement a bad name. Lumping “American Christians” together and then judging them based on the worst people who adopt that title is creating a straw man.
All American Christians that I know try and follow what you pointed out in your first sentence.
The statement on judging however is a bit misguided, Jesus didn’t say to never judge, but to be careful to avoid hypocrisy and to judge with love.
Yeah, that’s true and it’s very upsetting that so many hypocrites would exist within the wider church. I’d argue that someone that doesn’t follow the teachings of Christ isn’t a Christian at all since that’s literally what the word means.