Sacred Haven of Debauchery

There's one point that spoils everything: morality is a non-scientific category, and unlike, for example, gravity, which is the same everywhere on Earth, morality is different for everyone.
For example, vegans believe that from a moral point of view, it is absolutely unacceptable to eat meat. And Muslims believe that consuming alcohol is absolutely immoral.
And how should we deal with such statements? And what should we do with those who violate the morality of vegans and Muslims?