As an ex-man (not trying to be offensive - assume this is the correct term), are you now less dangerous to women or more so as they don't know you're an evil carrier of a Y chromosome?
Personally? Well, for a start only a blind person wouldn’t know there was a Y chromosome present.
I don’t consider myself a threat to women, I have no desire to intrude on their rights or spaces. And my validity doesn’t depend upon getting other humans to lie to me and themselves.
However, for safe guarding purposes, I am still a biological man. And as a trans identifying male I belong to a class which retains the pattern of male violence.
And, like most decent men and trans women, I am not going to scream NAMALT at concerned, vulnerable women. I accept that a lot of men are violent, commit sexual crimes on a huge magnitude against women and are a threat.
And like most decent sensible men and trans people, I accept that it is not a personal attack against me to say that. The authorities and women themselves can’t tell which one I am by looking at me, it only becomes apparent which camp of ‘man’ you’ve got in your toilet/changing room/girl guiding leader after an incident has happened.
Most people consider that an unacceptable and avoidable level of risk. Hence the safeguarding and sex segregated spaces coming into being in the first place.
Does it happen even with those safeguards put in place? Yes.
Does that mean we should scatter all existing protections and safeguards to the winds? Fuck no.