But fat girls haven't made a civil rights issue out of men needing to be forced to fuck them under pain of social ostracism and harm - most fat girls who whine about not being able to get a date get laughed out of the room, not told they're poor little princesses and that fit/skinny men owe them dates. (More to the point, fat men are far more likely to engage in that kind of whining and demand that they be provided with supermodel girlfriends, accepting nothing less - tons of incel men are fat and refuse to date anyone who weighs over 115lbs. But anyway.) Likewise, black gay men aren't out there telling non-black gay men that they need to fuck them or else they're violating their civil rights and deserve to die.
Troons, on the other hand, have literally made a central point of their "rights movement" demanding that lesbians and gay men submit to sex with members of the opposite sex. The cotton ceiling was and is a real concept which defines a central point of the trans movement as the need to "break through" the "barrier" of lesbian women's panties to "achieve equality" through sex/rape. No other group does this but incels.