I disagree.
Jesus would never approve of the marriage laws of the OT.
Those laws are addressed in the New Testament. I Timothy, I believe.
The only OT laws we are not obligated to obey are those addressed in the NT, with an explanation.
Please explain your point about Jesus not approving of the OT marriage laws.
"If they do not listen to Moses and the Prophets, they will not be convinced even if someone rises from the dead." (Luke 16;31)