I just don't think the same logic applies to her saying she supports anybody but him trooning out. It's as likely to enrage him as it is to appease him.

It's the most delicate way to set some boundaries without incriminating herself as a TERF, which, sadly, carries great physical, legal, and financial risk these days. If she lies and goes along with her mentally ill husband's delusions until she can free the family from him, then she risks her son being traumatized by the sight of dad walking around dressed like a hooker and calling himself Princess Sparkles. If she goes full TERF and it doesn't immediately lead to physical harm, then it will be used against her in court custody battles, plus will probably be used to turn her desperately needed support network against her. Having one small child and another on the way doesn't give her many options here.