No, Jesus did not say follow something fraudulent. The Pharisees had some authority. But had it been entirely legitimate, as Moses followed all the Lord’s commandments, he would not have differentiated them from the authority of Moses in Numbers 12.
John 8:56 Your father Abraham rejoiced to see my day: and he saw it, and was glad.
Uh... the Jews were physically the Children of Abraham. The physical relationship of Father goes back to the 10 Commandments. How many children has the “Pope” had?
You wrote:
“No, Jesus did not say follow something fraudulent.”
Moses’ seat was not fraudulent. It also was never mentioned in the Old Testament. Game. Set. Match.
“Uh... the Jews were physically the Children of Abraham.”
Not a single person alive in Jesus’ day could say that Abraham was his physical father. They were his descendents in the faith, not just bodily. A convert to Judaism legitimately called Abraham his father – and he certainly would not have meant biological descent.
You lose again.