Where you and I differ is that I don't take everything personally - I have never been harassed by a trans person going for a pee, I might very well have sat on the same toilet seat, given that men refusing to respect women's spaces is not as unusual as it should be..
But that's just anecdote, and behind the anecdotal there is a whole universe of principle and social convention and law and regulation and respect and so on.
Just as I support workers' rights to job security even though I've never actually been unfairly dismissed myself; I support women's rights to designated spaces even though I've never personally been harassed by a trans person going for a pee.
It makes things a lot less complicated if you look at the big picture instead of individuals' anecdotal experiences - a small number of spaces are segregated by sex, and 'sex' in this case means biological sex. Not gender, not gender ID, not how you present yourself, not whether you think your brain is male or female, not what clothes you wear - simply your biological sex.
You're probably right that some transwomen have failed to respect women's spaces over they years, or have mistakenly believed they had a 'right' to do so; but that's been clarified recently, they have no such right, and if they are thoughtful, respectful people, they will stay out of them in future.
A campaign to make sure that men's toilets are kinder and more inclusive would be useful, so transwomen can be reassured that they can safely do what they always say they want to do, i.e. 'just pee in peace', in the men's.
Believe me, I'd love never to have to talk about toilets ever again, Tryingtobenormal124, but everything seems to come back to transwomen insisting on peeing in the women's toilets, so much so that I think that the 'T' in LGBTQ+ may stand for toilets🙄