I do agree that there is a market opportunity to fund $50m/year businesses, but that's not what VCs are for.
VCs: Invest in 100 companies, 90 fail, 5 return capital, 3 return 10x, 2 return 100x | 2.35x return on capital over a 10 year period (hopefully)
Index fund: 6% yearly return | 1.79x return on capital over 10 year period
Traditional small business loans average 6-9% APR and have a higher failure rate than an index fund but lower than an index fund. Unfortunately, for startups, they require collateral and/or historical financials.