Its a basic thing in my view, if they start banning one thing then it will go on and on till your freedom on the net is restricted.
But who is the "they" under question? The ISPs?
Say that you were an ultra-conservative fundamentalist, who wanted to provide an internet access service that, somehow, prevented access to all pornography-related sites. Use any other example you like: you're marketing to a certain group who want to surf the 'net without seeing "whatever".
That's a valid business model. You should have the
right to start that business. A Congressional "Net Neutrality" law would violate
your right to operate that business.
In any discussion of "rights", it's very important to consider all angles. Frequently, someone's "right" infringes on someone else's.
And since when was "internet access" a right or a freedom? I know I pay for mine, and I get what I pay for. If I didn't, I'd seek out another vendor.