It's very difficult. Because maintaining a delusion is key. It's fine if you view that delusion as harmless. But as soon as you start to see the implications and repercussions, the harm becomes more evident. And, at some point, your complicity becomes a real possibility. Yep!
I've managed, so far, to keep the individuals separate from the ideology. It helps that neither of them pretend they are anything other than a "tranny pervert" for one and an unhappy woman now living a happier masculine life [please don't anyone take umbrage, those are the words my transvestite friend uses, has used since the mid 80s, he is tapping 60 now, as are we all, it is his identity...]
But that rough ground is getting rougher... I may buy myself some all terrain thinking boots!