She's almost 70, spend all day watching q-anon style of videos (but in Spanish) and every day she's anguished about something new, last week was asking us to start digging a nuclear shelter because Russia was dropped a nuclear bomb over Ukraine. Before that she was begging us to install reinforced doors because the indigenous population were about to invade the cities and kill everyone with poisonous arrows. I have access to her YouTube account and I'm trying to unsubscribe and report the videos, but the reccomended videos keep feeding her more crazy shit.
Wondering if a qanon person would be offended at you deradicalise them seems like overthinking - it's certainly possible, but most likely fine to do anyway. The only cases where you'd think twice is if something similar has happened before and if this person has a pattern of falling into bad habits/cultish behaviour in the past. In which case you have a bigger problem on your hands or just a temporary one.