Not sure if this is sarcasm, but if not, it’s exactly the opposite. Racists who believe bullshit around border stuff are already voting for Trump because they know he’s the most racist “mass deportation” guy.
Lib and sucdem parties all over the imperial core are doing the exact same thing. I fimrly believe they do not do this for the vote. This is climate fascism. These politicians know what is coming and they know they will not enact policies that could mitigate the havoc that is already wreaked upon tropical regions. So what they do instead is militarizing the borders in the Southern US and the Mediterranean further and further to keep out the millions of people that will soon live in areas that just aren’t habitable anymore.