People who have no self-esteem on the inside and whose entire ego is based on the outside are pretty easy to bring down if you know how.
You are not going to be able to do it all at once, but everyone has some sort of physical imperfection if you change what your ideal is.
For example, a gal who is a little on the skinny side you could casually call her "skeletor" or "bones" and then just playfully say you were just joking in bad taste kinda like how a guy saying to a fat girl "hey big gal", is not gonna make you too popular with her.
Every woman is either too fat or too skinny or doesn't have the right shape since superficial beauty is based on an ideal in her head that changes from day to day.
And if there is a woman who thinks she is perfect and you yourself cannot notice something she might be insecure about, well then you invent an insecurity in her head. Like for example, you could bring up something dealing with random knowledge about a particular subject you know she is clueless about and then bring it up in conversation and when she has no clue you can pretend to act like "OMG I can't believe you don't know that. What did you do in high school to get that degree" but of course be snide about it as if you are just joking and in bad taste and not intentionally trying to hurt her feelings (even though that is your goal).
Keep doing this to any woman who does not have the kind of self-confidence that matters (the kind that comes from her heart) and her self-esteem will be in a wreck really fast. If she tries to pull a comeback on you, DO NOT EVER LET HER THINK SHE IS GETTING TO YOU. Your attitude must be that you are invincible and just laugh off whatever she says as if her values and projections of you don't really matter in the first place.
Like I said, this is a gradual process. You are not going to disintegrate a little bitch all at once without making it look like you are intentionally just trying to throw out whatever mean little insult you can come up with. You have to do it in a way that seems honest and non-vindictive. Basically, you want to get it in her head that if you think that way, then probably a lot of other guys think about her that way as well just they don't bring it up (kind of the bandwagon mentality gals have in evaluating themselves as it is not enough for one guy to think they are hot, they have to think that all the guys think they are hot).
And if she ever tries to suggest you are not in her league or pull that kind of routine on you, well there is the old "no thanks I don't fuck sluts" retort, or more common in today's culture since being a slut is not as much of a stigma anymore, but having an STD is. Just assert she probably has an STD and that her pussy is unclean and you don't want to get little red dots on your dick anytime soon.
Having an STD is like even more of a death sentence to your attractiveness nowadays than smoking or just about anything else, so pulling that "well all the guys like you and fuck you, therefore you probably have an STD card" is a win-win for you because there is no way she can get around it unless she carries the monthly results of a comprehensive STD test in her purse all the time.
Yah it is low, but a lot of gals need to have their bitchiness beaten out of their head every now and then for their own good. If you keep letting them act like bitches to your face, it only encourages them to behave worse so do whatever it takes to destroy them on the outside and then they might have a chance to grow from the inside and become a decent human being.