Sorry! Wasn't trying to be patronising :/ fairly standard in my circles to offer to answer questions for people who don't seem familiar with a topic.
I do see your point, although there's no basis for any sexuality that we fully 'know' yet, it's likely to be genetic.
You could just as easily state that people who are gay are only gay due to a problem, and if that problem were fixed they might not be gay anymore.
For some people, that may be absolutely true, and if individuals wish to work through their physical, psychological, and emotional problems to then figure out where they are placed on the kinsey scale that's great! But you couldn't say to everyone who is gay "You might just be experiencing problems with people of a different sex to you, get therapy" sort of along the lines of "you just haven't met the right person".
Do you view sexuality as fairly fixed? If not then it's all fairly changeable anyway, so the likelihood of forever identifying in exactly the same way from puberty to death is small.
Asexuality has zero to do with sex...like, it doesn't mean people can't have sex, don't want sex, can't orgasm, don't masturbate etc...
An asexual can have and want sex, can enjoy sex and masturbation, can orgasm. The only thing they do not experience is sexual attraction, and seeing as sexual attraction isn't something related to hormones or biology (in any known way) there's no fix for that.
Some asexuals, just like some sexuals, don't really like sex and choose not to have it, some don't masturbate. Within this group, some might have actual physiological problems with sex.
Like I said, I don't want sex (think it's weird, and seems gross haha) but I've never bothered having any tests done on whether there's a reason for that, because even with a sex-drive I don't experience sexual attraction so it doesn't bother me to not have sex.
It is 'rare' something like 2% of the population is asexual, and this has always been the case, 2% is small but still a lot of people. There will likely be more who are 'a-spec' and less who are also aromantic. The lobby is to have it treated as valid in society, and at the very least mentioned when teaching young people about sexual orientations, because then they won't have to get their information from tumblr.
I actually agree with you that labels can be harmful, but only when applied by somebody else. Because as individuals we can choose to apply, change, ignore, whatever label we want to. When others label us, it becomes a lot harder to escape that label.
I don't think that someone with problems with sex is automatically asexual, or that an asexual can't also have problems with sex that they want help for. I don't view those things as mutually exclusive, and really don't know anyone who does?
OP doesn't come across to me as ace, I don't know what sexual attraction feels like, but it does seem that there's some level of it present in OPs relationships. Saying that, it would be very arrogant to tell someone else how they ID or that their ID doesn't exist.