Classical liberalism is a necessity for pluralism, and pluralism is necessary for a country as diverse as the United States to survive. As soon as you drop "live and let live" as a fundamental principle and start trying to micromanage personal choice, you're on the road to division.
The Right should stop trying to ban gay marriage or abortion or TG folks from public schools. The Left should stop trying to ban guns or family gatherings or large sugary drinks or the rebel flag or traditional pronouns.
Until American can break the habit of trying to control one another and make other Americans live a certain way, we will never live up to E Pluribus Unum.
EDIT: Case in point...