Jack the Potato said:
I'll change your argument into something else so you can see how silly it is:
"This is just a hypothetical scenario in which say, scientists have discovered
liking the colour red is caused by some sort of chemical brain chi something or other and they've developed a pill that could make people
who like the colour red, stop liking the colour red. First, would you support it if it were utterly painless with no real side-effects? Second, what do you think the reaction would be from the masses? The community
that likes the colour red? Please
try and keep discussion civil."
Am I trivializing a person's sexual preference by comparing it to whether you like the colour red or not? Probably.
Does this thought experiment have any real value? Nope.
The only things that can be "cured" are things that are not meant to be, problems, infections, illnesses, etc.
There is nothing wrong with homosexual people, it is just their own preference. Even suggesting that it is something that could be potentially cured is pretty offensive. Even if you add "I am not a freaky fish guy!" it is still offensive.