Look, for me personally, I agree that the "I just want to be friends" thing is stupid. But you can't condem all girls that use it as being selfish. They're trying to spare the guy's feelings more than anything else.
I just have to say that in response to your second point, I'm not trying to be an ass but, fuck you. "It is harder for guys to find smart and cool girls than it is for a girl to find smart and cool guys" where on Earth did you get that impression from? Are you trying to imply that the vast majority of girls are dumb and uninteresting and that all guys are awesome and intellegent? I agree that there are a lot of really stupid girls out there but I think you just illustrated how idiotic guys can be pretty aptly.
What does having other girls that meet your ridiculious standards have to do with harassing someone who isn't interested in you? Do you think you can wear down your dream girl with sheer persistance? It's not going to work and on the off chance that it does she's probably not as smart or cool as you'd thought.
And another big fuck you to your last statement. There's no excuse for being a creepy asshole to some girl just because you like her and she doesn't like you. And for the record there are pleanty of incredibly lonely girls in the world too, you're just too caught up in your own selfingulgent image of your pathetic lonely self to really give a shit about anyone else. Why don't girls deserve a guy who is smart and attractive and worthwhile, oh right, they're just falling out of the sky and into our laps! I hope you wallow alone in your self pitty forever, it disgusts me.