As a reminder to everyone: the constitutional guarantee to freedom of speech means that the _government_ cannot censor any views (outside of certain exceptions for threatening language, and the like). It does not mean that a private entity has to enable speech that they find objectionable.
So you support the idea that Verizon and AT&T should be free to block whatever content they wish, correct?
Verizon, AT&T et al according to the US Supreme Court have the right to freedom of speech just as much as you do. So yes they are free to block whatever content they want.
And you have the right to not support them, campaign against them or build your own ISP. But your right to freedom of speech shouldn't stop others right to their freedom of speech.