It's perfectly ethical to not be loudly and publicly performing an anti-holocaust view 24/7/365, and failing to do that does not make one "pro-holocaust".

The list of Bad Things is endless, and failing to address any one of them does not make you in favor of that Bad Thing. It just doesn't.

You're just trying to bully people into spending their time amplifying your particular protest, and bullying in itself is a Bad Thing.