i find it confusing when vegetarians are ok with gelatin

i was hanging out with some friends who are vegetarian and they were talking about eating gelatin today. they said it wasn’t a big deal to eat. i didn’t say anything because i didn’t want to be annoying, but i thought it was confusing and hypocritical. obtaining gelatin requires killing an animal. that’s not vegetarian. i don’t know why they’re vegetarian, so maybe they’re just not ethical vegetarians. it’s definitely a weird mindset though.