The point of the post is that if Trump had said that he wanted to kill every immigrant at gun point, there wouldn’t be any jokes or memes about it, because it’s a dangerous statement that would be taken seriously by anyone.
By making memes about him saying immigrants are eating dogs and cats, then we are “signaling” that what he said isn’t terrifyingly dangerous, we’re taking it as ridiculous and funny and not to be worried about. And that plays a role in normalizing all the stupid shit he has been saying.
As a disclaimer, Trump is a piece of shit and I am DEFINITELY NOT saying both sides are bad (I fucking hate that argument). But the argument in the post is a valid one. Of course there are also some upsides to the memes. First they are funny but they also cause those words to reach out to more people which hopefully has an effect in terms of voting against him
Fuck, why is it that almost everything that is bad in the US can be traced back to Reagan. It’s unbelievable