But who decides who is "passing"? And based on what criteria? Seems to me that the people doing the deciding are almost always trans-identified males themselves, male homophobes and genderists of both sexes - and that the criteria that's used to decide which males "pass" are always incredibly sexist, superficial, regressive and misogynistic.

If someone is passing well enough no one really minds.

Who do you mean when you say "no one minds"? On what basis have you arrived at the conclusion that "no one minds"? Surveys? Interviews? Polls? Has there been a vote that I missed?

Who exactly has been surveyed and interviewed to find out that "no one minds" when males use women's loos? Is it mostly men saying this or mostly women? And how diverse and "inclusive" is the population that's been surveyed and interviewed about this? Does it include orthodox Jewish women? Muslim women? Muslim women who wear hijabs or other kinds of veiling? Muslim men? Boys and men of other faiths worried about their mothers, grans, sisters, partners and daughters? Women and girls who are survivors of sexual assault? Parents of pre-teen and teenage daughters who'll have to share toilets with males at a time in life when the girls are feeling self-conscious about their bodies, and uncomfortable about dealing with their periods in shared toilets? Women who are or have been pregnant? Women who've had miscarriages in women's rooms at work or in public? Any girls & women who have heavy periods, fibroid bleeding or menopausal flooding and thus might need not just to wash blood off their hands (and moon cups) at the sink, but also might need to remove garments like their skirts, dresses and trousers to wash blood stains off them too? Any breastfeeding women who might have to remove their blouses at the sink to remove stains from leaked milk? Any elderly or very frail, slow women with impairments that fall short of disabilities but still make them very vulnerable? Any behavioral scientists, detectives, social workers, sexologists whose specialty is male sex crimes? Or whose speciality is male paraphilias like AGP, voyeurism, menstrual fetishes, listening to girls & women urinate, masturbating in public settings?

When surveying, polling, interviewing people to determine that "no one really minds" if males who identify as trans use women's communal toilets so long as those males think they "pass" as the opposite sex, have the respondents all been informed that 95% of "tranwomen" keep their dicks? And that the vast majority are sexually attracted to females? Have the respondents been told that there's absolutely no evidence that males who identify as the opposite sex, and alter their appearance to try to "pass," are less likely to be sex predators than other males - in fact, evidence from the UK's Ministry of Justice suggests males who identify as trans are more likely to be sex criminals? Do the respondents also know that males who identify as the opposite sex, and take CSH and testosterone blockers, retain virtually all the physical advantages that males typically have over females - such as much greater strength, speed, muscle mass, size/stature, bone density, grip strength, hand size, punching power, choking power? Do the respondents to all the surveys and studies that show "no one minds" know that a main reason that many males today identify as trans is because it's sexually arousing to them, that "gender euphoria" is code for a massive "girl dick" boner? Do they know that many TRAs brag that what's caused them to go trans is "sissy porn"?

I don't mean to be giving you such a hard time. And I know I'm coming off as an asshole here. But honestly, I think the claim that "no one minds" is fiction. Most of society has never been given a chance even to discuss this massive social change & its implications, much less to say whether we mind or not.