In racing a red flag doesn’t mean stop and call the whole thing off. It’s a chance to reset and see if/when it’s safe to continue.
Just because you see a red flag doesn’t mean someone thinks of you as less, It doesn’t mean they’re harmful or dangerous. That’s your assumption based on whatever raised that flag for you. A lot of people might not even see the same thing as a red flag.
Sure, you’re probably right most of the time and they’re not worth the energy. If you shut them down straight away though, without investigating, you might end up missing more green flags than red.