We do, until the legal system gets involved z and the entire point of that legal system is that it can't care if you're male, female, trans, or not.
If someone accuses you of rape, they have to be able to prove it. I known this sucks. I also know that this is a situation that many times is a "he said she said" situation that cannot be proven, so yes, I also know that there are many rapists out there, walking amongst us, possibly waiting to strike again
I also know that that is the price that we (most western European democracies, the US is already on the rdge) pay for a system of law that does not primarily focuses on jailing the guilty, it primarily focuses on keeping the innocent out of jail.
And yes, that is a system that you want. The second that we'd have a system where we would always automatically believe the word of any random person, just and only because she is a woman, you'd better be careful with who you decide will be your girlfriend. Same goes in reverse.