I find the goth aesthetic appealing, but I keep it to myself.
What is your reasoning for secretly liking it?
I don't think it is fully accepted in today's society.
You don't always get to choose what you find appealing. Liking something that most other people don't is fine.
What if I'm interested in the goth stuff because I'm a closeted homosexual, who isn't open with himself.
You can like what you like without having everyone feel the same way. You might currently feel insecure about it, but it's not tied to your sexuality. Finding goth things appealing isn't related to being homosexual.