Oh even further than that. All the way back to the '60s and 70s easily. With his persecution of blacks and the Central Park 5. Immigrants are just the most recent Target of his narcissistic bigotry.
Our media at every level barely ever served us. But it's complete failure in the last half century only facilitated all this. Even those of us here are at risk of being encapsulated in our own little media bubbles and manipulated.
Not sure how we get ourselves out from this. Individually we can value and employ critical thinking. But how do you convince people at Large? When confirmation bias is so much more comforting.
The problem is they don't value objectivity. Just objects and subjectivity.