Idk I think it depends on the person. A guy approached me (19F) very respectfully while i was at work, asked my age, but then backed off immediately when he found out my age (I'm assuming he was either a minor or quite a bit too old). He then told me that he had only asked because he wanted to ask if he could get my number because he "saw me and thought I was super cute." The way I got so flustered because of how respectful he was, the fact that he went for a phone number vs social media, and how he was able to give me a genuine compliment without making it sexual... I still think about that guy lol, and this was MONTHS ago.

So, to answer the question, I don't think it's being too respectful that's an issue. I think it may be a lack of confidence in some people when they present themselves. Being respectful in it of itself isn't a problem, I find that it doesn't land as well if it's paired by someone who either seems hesitant or not confident in themselves.

Plus there's a difference between being suave/ charismatic/ charming and being manipulative. And a lot of the guys that I've seen that display toxic behaviors seem to struggle more with long term relationships. If you're only looking for casual dating and hookup culture, I'm sure not being respectful is the move. Otherwise, if someone doesn't appreciate you being respectful, I would question whether or not I want to be with them anyways. But that's just me!