Sin is still sin though, whether the law is canceled or not. I also believe in the fact that the law is no longer binding, no longer something we need to keep. But I also believe (as you do too) that we are to not go out and sin just because the law is no longer binding. Jesus gave us a better understanding of sin when he said “if you even hate your brother that is murder,” and when he summarized the law by saying “love God and love others.” If God ever said He hates a sin then that will be true forever. No matter if that sin was defined in the law or not.