Well, I think everybody deserves a bit of respect, regardless of gender, but I also think "Chivalry" can lead to girls feeling justified to treat men like slaves. I, personally, don't hold the door for girls. Only for elderly folks and handicapped folks. Both of those types of people have to work their asses off or HAVE worked their asses off in life, so it's just nice to relieve them a bit.
Girls, on the other hand, have the full capability to open their own door, so opening the door for them would pretty much say "Hey, I think you deserve more respect than other people simply because you're an attractive woman!"
To me, it just screams "beta AFC woman worshipper".
May seem narrow-minded to some of you, but it earns me more respect in the long run from other people since I'm not subjecting myself to the position of the guy who is incredibly nice and easy to manipulate.
There are other ways to do this, yeah, but it's just my personal way of doing it.
I think politeness is just having a basic respect for everyone, though. Being polite is like not staring down a woman's shirt like she's a sex-doll, or not calling a guy "gay" for having longer hair than you. I believe it's the lack of respect for other people's choices, taste, lifestyle, etc. that leads to crime. Think about it: If a guy would respect a girl, he wouldn't rape her. He would respect her too much to just force something like that on her. If a burglar respected other people, he wouldn't disrespect them by breaking into their house and stealing their stuff like they don't deserve it.
I guess it all comes down to basic human rights and treating everyone equally. You know? Chivalry isn't treating people equally. It's putting the women in the spot of special treatment simply because they have a vagina, and that literally makes as much sense as putting a horse in the spot of special treatment because it has a mane.
Dunno, though. Life is weird, and maybe I'll change my mind about all of that.
That's just my personal take on it.