This exact same argument was used against gay marriage ("gay people can get straight married!" and interracial marriage ("anybody can marry somebody of the same race!").
If predominantly one class of person wants to do something, you can easily discriminate against them by outlawing that specific action.
In contrast, articulating the "women's rights" that are being hurt by trans rights usually end up in an awkward formulation like "the right to have a place in which they won't see somebody they think is a man."
So again, what right do trans people not have? They can get married. It's very easy to articulate the womens rights that are being violated lately. Simply talk to any women in the real world
Losing access to single sex spaces (bathrooms, prisons, sports leagues, etc). Men are statistically more violent than women and you are suggesting we should just let them freely into womens spaces. This is why they have fought for their own spaces
If predominantly one class of person wants to do something, you can easily discriminate against them by outlawing that specific action.
In contrast, articulating the "women's rights" that are being hurt by trans rights usually end up in an awkward formulation like "the right to have a place in which they won't see somebody they think is a man."