desperately-seeking-something:
All people’s ships deserve respect.
Put it this way: Just because you like your tea with honey, it doesn’t mean that you have the right to put someone down because they like theirs with sugar, or with artificial sweetener, or with agave nectar, or with no sweetening at all. Telling them they are “wrong” (or worse, “sick” or “disgusting”) for liking it their way is disrespectful and immature.
The way they take their tea has no bearing on the way you take your tea, and if you don’t care for the way it tastes, then the most you should do is politely wave your hand and say “No, thank you. I prefer it my way”, and go back to drinking your own.