See this is where pretty much everywhere gets it wrong. Prices aren't set by one side. Prices are ALWAYS set by both sides coming to an agreement.
People believe that prices are set by seller or employers, because they are usually the buyer or the employee, and they feel that they don't have the power to set prices, when the truth is that the price they want isn't just being set (and this is a good thing).
General package(no blockage) will be priced based on the supply and demand. Same is with whitelisted site package. The fact is, for most people whitelisted package where a bunch of competition websites are blocked is not a big deal. This annoys people who want cheap 'open' package.
This is precisely the reason where most proponents of net neutrality fall. You want things a certain way, but since the market will not provide you the option you want, you want it to be enforced by the government. If nobody can block anything, then there won't be any non-general packages. So make it about freedom. But it's no different than when groups interfere in the lives of other people, like preventing gay people from having sex by criminalizing it because they themselves are disgusted by it.
At the end of the day, the argument is simple, when you allow people to do something freely, will they do something you don't like?