

I’d call it plausibly deniable catfishing.
They are presenting themselves as a specific person without explicitly saying so, leaving you with less to stand on (in their mind, not in actual reality) when you claim that they are not who they say they are, because they didn’t say that the photo/audio was of them.
It’s pretty obvious to anyone with a brain that if your avatar is of a specific woman and you are using a feminine voice, that you at least think of yourself as a feminine person and identify at least a little bit with the imagery of the avatar.
So… for what other reason could they be using these photos and audio? Not many other reasons come to mind, so Occam’s razor (i.e., the simplest answer is most likely) applies, in my mind.
Ideology? He’s passing laws that are killing and torturing people.
Women are dying outside of hospitals that are too scared of being sued to treat them. Immigrants are being sent to Guantanamo Bay. Trans people are being systematically erased from government documents and having their passports confiscated.
These are real things that irreparably harm, not just ideas.