Short of God speaking from Heaven, you will never get a consensus on what is God’s Law. To some, eating shellfish is immoral. To some, it is not. To some, stoning someone for saying they are the Messiah is moral. To some, it is not.
You’ll only “never get a consensus” from those who are rejecting God’s law. The writing is plain.
But consensus not to be trusted because it’s always tainted by violation of absolute morality as you described it here:
“Don’t enslave people. Don’t murder people. Don’t treat people as being lower than you. Don’t lie in order to gain or hurt. Don’t cheat.”