Ehh, liquid smoke is def a lot better for you that actually smoking things, because there is a filtration step that removes a lot of the worse Volatile Organic Compounds that make smoke carcinogenic.
You’re probably right it’s not fantastic though ;p
And damn, idk what i’d do if onions made me ill… I use them in so much. Though i’ve found some ways of making them do make me feel ill , just i rarely make them that way so.