Cultural Liberation in Acts

So the title is kind of misleading and this concept needs some more work, but here is the concept.

I am of the opinion that it would have been very culturally and religiously radical for James and Peter, the strong Jewish anchors of the nascent Christian faith to say this statement:

"And so my judgment is that we should not make it difficult for the Gentiles who are turning to God. 20 Instead, we should write and tell them to abstain from eating food offered to idols, from sexual immorality, from eating the meat of strangled animals, and from consuming blood. 21 For these laws of Moses have been preached in Jewish synagogues in every city on every Sabbath for many "

It seems Jesus had already caused such a switch in their thinking, that already they had a deep understanding of the concept of God's acceptance through Christ and not the law.  Instead of requiring Gentile converts to follow lists of purity laws, circumcision etc, they leave them with a few guidelines to keep the peace and uphold the heart of the law (it seems these guidelines were later even loosened a bit in Paul's letters).  My point is that from my limited understanding, at that time to be Jewish was a fully knit social, cultural and religious system.  These leaders had seen God break the bounds of their own understanding and tradition.  I see an implicit acceptance of Gentile culture, where culture no longer creates identity with God, but rather faith, rather God's kindness.   This isn't blanket acceptance of all and any practices, but it lets God work through a different cultural framework than what was previously thought to be the only framework God worked in (namely the current system of Jewish faith).  Paul seems to flesh out this idea even more in his letters (1 Corinthian).  I guess I just want to capture what must have been a huge shift in cultural thinking, of seeing God only work within your world-view, to see him active in the lives of the diverse people group of the early church.  I think this shift may have started for Peter previously at Simon's house with  “What God has made clean, you must not consider unclean!”.