You never actually addressed this.

You addressed a different claim: that trans women are men pretending to be women. This position certainly exists, both explicitly and implicitly (e.g. the "Declaration on Women's Sex-Based Rights" implies this strongly with their incessant use of phrases like 'men who claim to have female gender identities').

But you didn't address the "usual refrain" despite stating it. In that one, cis men are pretending to be trans women in order to gain access to cis women. (No actual trans people are involved--it's an entirely cis-on-cis danger opened up by trans inclusion.)

Was this just an oversight?