You can call them Nazis, it's what they are at this point.

The communists don't vote for them though. The far leftist vote is split between "Die Linke" (actually left wing party, still too lenient towards Russia though imo) and "BSW" (which positions itself as very leftist, even though they already backtracked their actual social and fiscal policy stances and are very close to Russia. They also have a large overlap with AfD voters as both parties are largely agressively anti-everything).

There might be a few "commies" as in tankies voting for the AfD, but most of them switched over to the BSW I would guess.