I've experienced these problems first hand. US immigration being incredibly rude to visitors for no reason at all, and know someone from London who was sent to secondary because they were the wrong skin color (their electronic devices searched, books read, and seemingly no clear answer as to why, it was a business trip with a return ticket to a conference they had a ticket for and hotel room booked for).
I genuinely wish Americans could experience US immigration as a foreigner; rather than get their special lines where they just get waved through. Then things would change, things would change rapidly.
How many times, online, do Americans need to read that US immigration is some of the worst in the world before you'll believe it? That your border feels like entering a police state? Seriously, what will it take? The fact that you guys are now attributing it to "fake news" says a lot.
News stories are fake, anecdotes are fake, it is all fake because you don't like to hear it...
PS - US immigration has been horrible since at least 9/11 (arguably it was bad before). This has nothing to do with Trump, it was horrible under Obama and W. Bush too.