A man will always have a different pyshical presence to a woman.
Someone who is 6'2" and trans will mirror that psychical presence (and therefore threat) regardless of their gender identity.
I am 5'2" and am acutely aware of the impact of psychical presence. I am treated differently to women of bigger stature. I always have been. Its the way I am infantilised, its the way I got IDed for alcohol, its the way I am spoken to in a more negative way.
DH never got it, until I pointed it out. When he saw it, he was shocked at how deep and how subconscious it is.
We all do it.
Appearance is how you assess threat, competition and ally.
The idea that you can simply 'switch it off' is la la land.
We'd all like to be better at being fairer, but there are situations where your emotional brain will always over ride that, and that feeling is particularly acute if its become a matter of safety and survival.
You can talk yourself in circles denying it.
But water is wet.