I commend you for your personal ambition, but sometimes getting a different perspective can be a good thing. Your complaint basically is that you are having a hard time getting a VC investment for your (otherwise perfectly fine) running business that feeds a lot of mouths and - while not making a fortune - makes money.

On a certain level that's akin to a tenured professor with a perfectly fine University career complaining he has little chance of ever being awarded the Nobel Prize.

Ambition is great, but do not let it cloud your sense of pride in your achievements. If you're not content being 90th percentile, what gives you confidence you'd be happier being 99.9th percentile?