Vaping

So long story short first day out of the hospital I took my newborn to my partners parents home and they happily vaped around our new born and I wasn’t okay with it. I let it be known and they said they would stop but I get comments like “oh there’s no nicotine so it’s fine” “there’s no harsh chemicals it’s just steam” etc. I have done my research obviously and know that’s incorrect plus I understand good old oxygen is best for bubba. Just wondering what y’all think. Super frustrating honestly. 😕