I do feel sympathy toward people who cannot have sex. I would liken this feeling to sympathy for someone who cannot find friends.
If I were being a bit more flippant, I may even say I would liken it to sympathy for people who cannot have the video game they want.
My ultimate view depends on whether sex is a need or a want. I think it can be both. It's not like hunger, we don't die without it. But, like someone unable to have friends, the lack of it can cause some genuine pain.
If I were to not be able to have friends (which I don't really) I would just learn to accept it as best I can and cope in life without it. With regard to friends, I have friends, but not close friends. And, one day I might. I focus on other things.
I don't think menintights is a troll. I think menintights was being comparatively flippant, and the OP is comparatively very caught up in the issue of whether people can have sex or not (I can understand someone saying the OP has 'sex on the brain'; it's almost the same condition as someone who has a lot of sex, and cannot get enough, and has sex on the brain).
Such differences can inhibit understanding and communication.
The ability to take or leave sex, regardless of actual sexual ability, does exist, though it may require work or practice. I say this having demonstrated it in my life ~ I'm sure I could be having oodles of it if I wanted to and it's not that I don't like it; I'd just rather be doing simpler things.
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.. one day
in murky water mild,
where Wednesday lay
A Thursday child ..