Homosexuality is a natural observable phenomenon in the human species across time and cultures. It is an aspect of people as fundamental as height or skin tone. Not accepting them for any reason is intolerance and does not have to be tolerated. It is also intolerance to not accept Muslims, but you do not have to tolerate any intolerance that manifests from their beliefs.
People are not tolerant or intolerant, specific views held by and actions done by people are.
You don’t need values to reason about tolerance.
The only form of intolerance Popper recognized was bigotry around beliefs. The concepts (and words) homophobia, racism, transphobia, and islamophobia were not even invented when he wrote about the paradox of intolerance.
When he described the intolerant, he specifically meant people who would use violence to stop others from expressing different beliefs - nothing else. He did NOT mean "intolerance" of any particular skin tone, or sexual behavior, identity group, etc.
This is important because intolerance of sexual behavior doesn't structurally break the system of discussion and truth-finding that we use. You could jail every blue-eyed person, just was we jail people who commit certain crimes, but as long as everyone can speak then our system for collective truth-seeking still works. The ONLY meaning for the word "intolerance" that breaks that is intolerance of free speech, and that's the only kind of intolerance that Popper said needs to be suppressed with force. And he was right.
I see this misunderstanding constantly online - honestly it's hideous to see people twisting Popper's pro-free-speech message into an excuse to crush those they misunderstand or disagree with. Literally inverting his meaning.
Here, let’s talk about the person who literally replied to your post. Quoting it since I’m sure they will, rightfully, get banned.
> Btw, tolerance, like democracy is just a bulls$##t concept. Would you like to be tolerant of the neo-trans man going to the same toilet as your teenage daughters??? [wawjgreen] [1]
This is hate speech. This is not an expression of belief or rational argument. It’s not even an argument at all, it’s just an emotional appeal to transphobia with the goal of changing your perception of trans women to that of man who is out to sexually assault teen girls, and a direct call to not tolerate them (i.e suppress their speech). Couldn’t have asked for a better example to just fall into the thread.
In contrast, someone expressing a belief or making an actual argument like, “I know that not allowing trans men and women to use the bathroom that matches their gender will cause them dysphoria, but as a matter of public policy here is why I think bathroom bills are necessary…” is not transphobia and is speech that should be tolerated.
[1] And also take a moment to appreciate an IRL instance of accidental-ally. Obviously we don’t want trans men in the women’s restroom.