Setting aside your personal belief about how CK chose to express his beliefs...

The Browns don't have any greatness QBs.  Hue Jackson turned Terrell Pryor into a starting QB in the NFL...and at times..TP looked good. CK is a better QB version of TP. 

The most famous Brown player of all time ... Jim Brown ... himself a social justice warrior, could be a possible mentor. 

And I believe in Cleveland, adding CK would would put butts in the seats. 

At this point, what does Cleveland have to lose?