Let him stay. He/she/it is a constant reminder, and I do mean constant, of the mindset of the left wing ideological hatemongers. He fits the mold so perfectly that I don't know how he manages to avoid the ban hammer.
Besides that, he/she/it is good for an occasional laugh.
Are you mentally stable?
Of course he/she/it isn't mentally stable! His/her/it's obsession and 24/7 posting is all the evidence that one needs to conclude that he/she/it is as batty as the most batty left wing loon.
Now, let's get him/her/it spun up a little:
End the Occupation!
Free Dixie!!
build a wall but on the Potomac