Everyone's heard the advice "stop trying to chase women, just get to know them as people"

Yes, you need to see them as people, instead of focusing on physical features. So when you interact with a woman don't, "try too hard". I like to treat everyone equally, so if I'm attentive to a female friend, then I'll be attentive to a male one as well.

The first girl... any guy under 6'2''. fuck me silly in bed".

I mean...people have preferences, so not much you can do about that. She has the right to ignore men under 6'2" even if they're a perfect match. Is it a good idea? Maybe, maybe not. But it's still her choice.

The second girl is very accomplished...She showed me her Tinder last night and it's like one Abercrombie & Fitch

Same thing. People like what they like, sorry to say it pal. I've never had any specific requirements personally, so I'd rather not critique someone for being on the opposite side of the spectrum. It's simply a state of mind I haven't experienced.

I honestly feel like total shit

Don't. They're your friends, so their preferences should be irrelevant. There are tall women with short men, and short women with short men. While I understand you've met neither, they exist. You shouldn't give up hope based on such a small sample size.

at least before I had girl friends, I could have told myself "well, maybe there are girls who are into men like you and you just haven't met them yet!"

This is still true. Regardless of how many women you've spoken to regarding this matter, you haven't spoken to them all.