EzekielRaiden
Follower of the Way
I can certainly say that if you said you were playing "under protest," I would ask you to protest on the other side of the designated line for protesters.Were I a player in this situation I'd make it clear I'm playing "under protest", as it were; by specifically not agreeing to what I see as a poor principle for play (while still otherwise accepting the invite into the game) and then doing what I can to haul that poor principle out into the light in order to expose its poor-ness.
And I'd hope my own players did the same thing when I'm the DM.
Namely, the other side of my front door, if it were in person.