First of all, this isn't true. I've clarified my opinion on single sex spaces multiple times.
However, I'm not obliged to debate with you on any subject you please.
I've repeatedly stated that my interest in engaging in conversations about sex/ gender/ transness is not because I want to have a debate about who gets to use what toilet. I couldn't be less interested in that, and I don't think it's helpful.
As I have explained repeatedly, it's impossible to have a reasonable discussion about policy when we can't even agree on the basics. In a context where there is so much misunderstanding about what being trans is, and so much prejudice towards trans people, that conversation is never going to reasonable.
So that is why I engage in these conversations. To try to challenge misunderstandings, prejudices related to understanding what 'sex' is, what 'gender' is, how they are related, and what it means to be trans or to have a DSD.
That is what I'm here to discuss. Not toilet arrangements, or security in prisons.