Was given by God to Moses more than 3 millennia ago. Is still binding on everyone today. There are many differences between today's culture, and the tribal society of the ancient Israelites over 2,600 years ago. Slavery has been abolished. Modern democracies extend religious freedom and tolerance to all of its citizens.
Women are able to vote and enjoy equal rights to men.
Thus some of the Ten Commandments no longer apply, for reasons described below. Attempting to promote them throughout the U.S. or Canada would generate alienation, resentment, and anger. Violence, including school violence is possible. Most people probably feel that the Ten Commandments simply prohibit behaviors like adultery, murder, lying, etc. Thus they should be universally acceptable to persons of all faith groups, from Asatru to Zoroastrianism.