He wasn't talking about the hygiene of washing hands. He is God, he understood. He was making an obvious point about human traditions a which the Gospels even clarify with context.
The Scripture is full of similar scenes. Peter sees a vision with a sheet with unclean animals ready for eating. The focus was on evangelizing the people who eat those foods tho: the gentiles.
The destruction of the Second Temple was prophesied by Christ, and apostles started serving in the Church only 50 days after His resurrection, on Pentecost. So yes, rabbinical judaism has been a reaction to the destruction of the second temple, but the Church was already active and persecuted in the center of the roman empire, many epistles were already written and there were churches through greece and rome
The Scripture is full of similar scenes. Peter sees a vision with a sheet with unclean animals ready for eating. The focus was on evangelizing the people who eat those foods tho: the gentiles.
The destruction of the Second Temple was prophesied by Christ, and apostles started serving in the Church only 50 days after His resurrection, on Pentecost. So yes, rabbinical judaism has been a reaction to the destruction of the second temple, but the Church was already active and persecuted in the center of the roman empire, many epistles were already written and there were churches through greece and rome