>By stating that people's private business shouldn't concern others, you are also imposing a moral system on others

Only in mental gymnastics. Staying out of other people's private lives is not a question of my own morality but also the law in most western democracies. I am free to do whatever I want as long as my freedom doesn't negatively affect anyone else. If you're not affected by what I'm doing in private, why are you trying to involve yourself in it and act as a judge?

You're literally telling other people to stop doing stuff that you don't want them doing, specifically the act of telling others what to do.

You're allowed to do that, and we're allowed to point out that this doesn't work in practice and that the failure in practice is itself why we're not surprised or even upset about the hypocrisy.