That might be a solution 5, 10 years down the line.
What's the solution today?
If you cut any site off from Google/DoubleClick, you've effectively prevented them from monetizing through advertising enough to reach top 100.
That's not every site's business model, but there's certainly a class of sites we'd like to exist (of which YouTube is a prime example) that would not be able to exist without access to the US advertising networks.
If you cut of the other ways to get money then Bitcoin is the solution today (or in a few months when it is properly integrated with the merchant software).
Bitcoin is not a solution today. Your parents are not going to buy something from a website that only accepts payment in a currency they've never heard of and don't have. A website that can only accept BitCoin payments cannot be competitive.
What's the solution today?
If you cut any site off from Google/DoubleClick, you've effectively prevented them from monetizing through advertising enough to reach top 100.
That's not every site's business model, but there's certainly a class of sites we'd like to exist (of which YouTube is a prime example) that would not be able to exist without access to the US advertising networks.