Previously you said

I've been using men's rooms since I was a teenager and never had a problem.

Now you say

This has nothing to do with unisex bathrooms, which I have been using for years without a problem.

So which is it? Is it "men's rooms" or "unisex bathrooms" which you've been using "since I was a teenager/for years"? Also, exactly how long a period are you speaking of? It's not at all clear whether you were a teenager two or 20 years ago.

The larger point is that the issues being discussed on this thread are not about you and what you as a lone individual have a problem with or have personally experienced.

I do recall an incident in high school where I was harassed by fellow cis girls in the locker room. That's OK apparently, because we're all females.

Again, this is not about you - it's about the nearly 8 billion human inhabitants of planet earth.

Also, no one here has said any kind of harassment is OK. Girls and women are perfectly capable of being unkind, cruel and/or abusive to others of the opposite and our own sex.

But just coz girls and women can be guilty of harassment and bullying doesn't mean we should get rid of all safeguards put in place to protect female people from predation, abuse, intimidation, harassment, menacing, stalking and assault by members of the opposite sex.

Finally, for the record, during childhood and adolescence pretty much everyone gets harassed, bullied, picked on, razzed at some point, or frequently. Even the "cis" girls and "cool kids." This can be deeply unpleasant to go through, but it's closer to a universal human experience than one unique to you.