I pity the person that thinks this only affects gay people and their marriages. The decision rests on the fundamental right to privacy and non-interference by government in private lives established decades earlier. In the Dobbs case, SCOTUS overturned Roe v. Wade and the right to abortions because they decided this right to privacy and non-interference does not exist. As a result, I expect gay marriage to fall.

But also in general the idea that you have a right to be left alone. That includes controls on all forms of contraception (the original case was about that), pornography, dating apps, consensual adult sex, sex toys, etc.