No Democrat politician has ever stated that Republicans have a mental illness for hating Joe Biden. Nor have they come up with a phrase similar to Trump Derangement Syndrome to describe it.
This is why I don't like "both sides" people. Overall Republican voters and their representatives are worse people.
At this point even his own people know he's a psychopath. "Trump Derangement Syndrome" is just another term for "being right all along."