Sure.
Right-wing supremacists ought to be driven out of the military. Their point of view and attitude are contrary to our values and our mission statement and very unlikely to be "corrected" by anything the military would try to rehabilitate them. So, for them, disciplinary proceedings if applicable and release from the forces in all cases after that.
Soldiers/airpeople/sailors doing, for some unknown reason, something dumb related to fascism at a party, under circumstances that don't amount to a "white supremacist meet" and who otherwise do not exhibit or hold such views, should be disciplined as appropriate, perhaps put on C & P, but should not have their career put in jeopardy, especially if they are otherwise good soldiers/airpeople/sailors. Dumb will always be Dumb, but does not merit the "death" penalty that is dismissal.
My mention of a "Spare" is, of course, a reference to a certain prince of the realm's participation in a costumed party disguised as a Nazi. If he can do dumb things, knowing full well his grand-mother would go ballistic on him, perhaps we can cut some slack to dumb junior ranks.