LOL at Carlson, he basically admitted that what he was saying was bigoted, then tried to cover it by urging his viewers to imagine their own hometowns changing so quickly. There's no doubt that rapid demographic change is one of main things that helped elect Trump, and it scares the bejesus out of middle-aged and older white rural, small-town (and some suburban) folks, as well as the GOP high command. That's why Tucker and others at Fox keep bringing it up: it scares their viewers and drives them to vote. Even many small NC towns that are struggling economically have still seen a substantial increase in Hispanic and some Asian immigration, and many native whites resent and fear it. Many of the older ones are happy to use these folks to mow their lawns, clean their homes, and do other chores for them, but God forbid they should vote or speak something other than English or be too "visible" in their communities. Demographic changes also scare the GOP high command because they know what it means down the road: fewer GOP election victories. Hence Voter ID laws, efforts to remove immigrants, extreme gerrymandering, etc. It's an effort by both groups (GOP leaders and Trumpite base voters) to delay the inevitable.