Comparing corporations from 80 years ago under a regime that was toppled to a shitty CEO from today is utterly meaningless. The point of conscientious spending is to affect change. Not buying an Audi today does not send a message to Nazi Germany because it no longer exists (and it wasn't even Audi, it was their predecessor). Not buying a Tesla today sends a message to Tesla, because it exists. Make sense?

Do you realize that sometimes people make choices because they have moral or ethical concerns? It is not always about sending any sort of signal to others. It is very rarely about sending any sort of signal to others.

In fact, the phrase "virtue signaling" was initially primarily used by people who seemed to lack moral or ethical concerns of their own and couldn't fathom that other people were guided by such. It's not a great term to throw around when it doesn't clearly apply.