I was born in 1969. Two years after being a gay or bisexual man became technically legal, but a very long time (indeed the process is STILL ongoing), before it became socially acceptable.
During my childhood, I recall a great kerfuffle among straights over the word “heterosexual”. There was no need for this word, went the logic, because heterosexuality was normal and needed no label. Of course, the people saying this were homophobes in the sense that they viewed homosexuality as an aberration, a special thing that needed a label. We needed to know who the homos were, because they were They. We didn’t need a label for straights because they were Us. And it was important to label homosexuals as They, because otherwise they might end up mixed in with Us, they might want the same rights as Us, they might pass unnoticed among us and they might end up becoming attracted to Us and then we would have to deal with their horrible, warped sexuality (bear in mind this was adults talking, I was a very small child, listening, and yet to develop any sexuality myself).
That was bigotry. Wanting to label a group of perfectly normal human beings so that you can avoid them / so they never come on to you (they wouldn’t have anyway, darling) / so you know this special group of people get special treatment (which consisted of derision and the denial of jobs and various human rights) is a clearly bigoted position. And I watched it in action in my young adulthood: gay people being actively blacklisted at work for their sexuality. We see that that position is bigotry now, because “heterosexual” is now a perfectly accepted term, and gay people are, to some degree and by some people, accepted.
Yet precisely this position is being adopted by some feminists with regard to the word “cis” (which means “not trans”), and it is being touted as not at all bigoted, because why do we need a word that means “not trans”? Only the trans people need a label. Because they’re the weirdos.
This position is as bigoted, and in precisely the same way as the people who “didn’t agree” that they were heterosexual. It is othering. It identifies one group as needing careful definition and labelling. It identifies the majority as Us, who do not needing labelling.
There is a third way. I turned out bi. I also turned out genderwonky: nonbinary. I’m an “it”, albeit an “it” with a massive set of knockers. I’m not trans because trans is a binary position. And I’m not cis because cis is a binary position. If I were cis or heterosexual I would clasp those identities to my substantial bosom, just as I would if I were a lesbian, or trans. We all get to be who we are, we don’t get a choice in it. So my identity is bisexual, nonbinary.
If you think that your identity magically doesn’t need a name, because it is the default assumption, then you are bigoted, and you are supporting a bigoted society’s bigoted norms and bigoted “outsiding” of people who are not like you.
I don’t have any time for that.