Do you think about a relatively new idea, that belongs to the 'trans movement' (if we can call it that), about "a woman with a penis"?

Do you think that these "women with penises" exercise their right to be who they are, or are they harming other women by intruding into their single-sex spaces? Do you think that there are other genders, or is it just male and female, and why do you think the way you do?
Update: Edit to the QUESTION:
It was supposed to say, "WHAT do you think about a relatively new idea....".
My apologies for the mistake.
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