I'm not sure if that would solve things. After all, we've got to consider what sort of nice girls that OP (and any of us, for that matter) is likely to meet.
Truly nice girls -- the well-adjusted ones who live contented, ordinary lives -- are going to search for someone who is like themselves. They'll want a nice, well-adjusted, contented guy who is sociable and socio-normative and all that lovely jazz.
Basically, they'll want someone who doesn't post here.
Take away the girls who represent the above-detailed sliver in the pie chart of amiable femininity, and you've got what >>40 described: nice, not-entirely-well-adjusted girls. And here we have a problem.
Those examples -- the bookworm who avoids people in favor of fictional worlds, the girl who has been cowed and humiliated into silence, the overbearing girl who lives in fear that people will ignore her -- simply aren't the sort of girls who need a boyfriend. They need therapy. Perhaps only a little. Perhaps decades' worth.
So Mr. OP, as I see it, is floating adrift on the sea of love in the same dinghy that we all share: we aren't the well-adjusted socio-normative types who have little trouble finding companionship, yet we're in no position to play counselor to the sort of individual that we'd likely be able to find. So where does that leave us (and Mr. OP)? Frankly, I don't know the answer to that.
Perhaps we need to change something in ourselves, to abandon our geekish, reclusive, anonymous-message-posting ways and become more like the people we see at school or work. Perhaps we need to change something even more fundamental than the above -- perhaps we need to become different people altogether, and change our worldviews, our interests, and our personalities, in the hope that we can perhaps change our possibilities.
Or perhaps the anwswer doesn't lie in trying to change ourselves to fit the available parts in the game of love. Perhaps we need to find a different game altogether, played under our own rules. If we are creatures whom the world around us deems unfit for romance, why should we feel sorry for ourselves?
If the world of boys' and young mens' romance manga provides a romantic framework with which we are most comfortable, why abandon it? We can live our romantic lives vicariously, through the media of romantic manga, anime, and games. The romances we see in these media are unique and irreplicable -- what we're reading and watching, after all, are romantic fantasies crafted by men, for men. By definition, they are the sort of scenarios populated with the sorts of characters that we are fundamentally unlikely to encounter in the real world. Why not embrace the fantasy, and content ourselves with lives of vicarious romance?
Because someone claims that vicarious romance represents a denial of our essential humanity? On what grounds? I've been told -- on these boards, no less -- that a necessary component of the human condition is love for another human being. And yet, I've never heard a cogent argument for why this must be the case. Perhaps some consider love for another human to be an essential component of humanity because love, in leading to sex, in turn leading to reproduction, helps to carry on the species. Yet there are myriad ways through which modern love between humans rejects the aims of reproduction, yet we do not consider these components of love to represent denials of our humanity.
Personally, I'd have to say that I've been there and back again, and I'll stick to fictional romance. The scenarios are perfect, the girls are cute, and if the worst whould happen, there's always the reset button. There could very well be a nice, well-adjusted girl out there who would want to date me, but I no longer possess the patience necessary to seek her out.
OP, there's no shame in liking fictional romance. Often, it's honestly preferable to the real thing.