Even those who didn’t committed atrocities are guilty. Even liberal German courts are that opinion. With the SS you have to proof your innocence when you were member of it or even a volunteer (which is more damning).
At least 60k Ukrainians were volunteers for the Nazis SS or army or alike. They were important contributors to the genocides that were happening there.
Even after 1943 you had the extremely problematic UPA (Banderitas) which did commit massacres which were complementary to the ones of the Nazis and the SS (which orders they did follow). Then again the individual innocence not guilt of members has to be proofed here. One reason for that is that there was pretty much no war crime free unit, no forced press ganging and the victims can hardly identify people.
Before you defend Nazis do at least research about the individual people and their units and listen to experts.