This is not a USA perspective. This is a conspiracy theory perspective from spending too much time in liberal/progressive echo-chambers that repeat fearful, hateful myths about their political opponents.
I’m glad you can believe this is true, genuinely. I have hope that maybe this means things will change.
But as a white guy from middle American (in that I lived there for 40 years) who has voted Republican and Democrat and has enough conservative ideas that people are often confused about my political leanings, I can tell you there is some truth to this.
I’ve been in the room more than several hundred times when people who were working in the American bureaucracy openly "decried the horrors of the Mexican invasion ". I will admit the majority of that was my ex’s father but it wasn’t only him. I’m certain he did not make things easier on his Mexican applicants (dmv in his case).
I’ve also heard racial slurs used hundreds of thousands of times, very few people engaging in this voted democrat.
I’m sure there are endless stupid conspiracy theories in progressive echo chambers, I hear them from time to time they are just as silly as republican ones and I would love nothing more the above comment to be correct.
In the end, their experience definitely does not match up with mine and we should all be sad.