As to your point about rejecting campism starts at home, I think we're in partial agreement. It is important to reject one's own 'camp', as failing to do so is... well, literally just campism. And we 'in' a certain camp are often better poised to examine and denounce certain aspects of our own camps, and insofar as we are gifted with that perspective, we have a very strong and serious moral duty to do so.

I'm just wary of the idea that we all 'end up' with the duty to denounce our own camp extra hard, rather than the duty to police ourselves and ensure that the moral failings of our own 'camp' don't escape our notice or our condemnation. We can't control whether others' condemnations are correct in target or intensity; only our own.