When we talk about “including” people in society, we generally mean they should have equal opportunities for education and employment, not suffer disadvantage in such things as housing and healthcare and see representations of themselves in the mainstream media.
We don’t mean such people should take precedence over everyone else, except for instances (such as shortlists and selection), where systematic oppression has denied people opportunity.
Inclusion doesn’t mean creating a special class of people we all have to be super-nice to. Being a member of a minority group doesn’t stop you being a sexual predator, incompetent or an arsehole. It doesn’t mean other people need to go out of the way to be especially nice to you; it doesn’t mean they should give up their rights, (which is different from privilege) to you; it doesn’t mean you’re excused from following the same rules that apply in civil society.
On a personal level my answer to how I treat trans people would be: with the same courtesy I try and show to everyone, but with the same caution I apply to all unknown men, in the case of transwomen.
I will say that the statistics about the number of transwomen who are in prison for sexual offences, and the threatening behaviour, and display of kink, written and actual, which seems to be a hallmark of trans activists, means I’d treat a transwomen unknown to me with considerable reservation.