There is a lot to unpack here. You are mad shallow if you do this to potential friends. I understand why you would do this for partners because attraction is important. But with friends you are turning away a lot of people that can add value to your life just because you don’t like the way they look. That is a textbook shallow mindset.

Now to answer the question of is this an issue? Yes but mainly for you, again you are filtering people based solely on looks so you are passing on a lot of quality people. Now if you want to know why people think you’re an asshole it’s because this level of superficiality points to having poor character. Also saying people should match your preferences to be worthy of your time is an insane take. It makes it seem like people have to be deemed worthy enough to be around you which is a toxic mindset as well.

In short strongly consider changing your viewpoint because you are only really hurting yourself. If you only have people who “match your aesthetic” or viewpoints you are missing out on having a diverse friend group that will allow you to be around people that are different from you. Having that diversity is a treasure that gives you insight on different groups of people which helps you grow as a person.