What if there is a law against homosexual intercourse? Should people be expected to refrain from participating in it until they can convince enough people in th

What if there is a law against homosexual intercourse? Should people be expected to refrain from participating in it until they can convince enough people in their country to change the law? If you need to start adding a bunch of qualifications to this principle of illegality being unethical, meaning that if you can't apply it consistently, then it's probably not well founded.