The Dutch simplified the most useful rule in the 17th century: "live and let live", it was codified into (maritime) law.
We have a system that cannot accommodate all views and opinions, but if we gonna call it democracy, at least the minorities should not be discriminated on.
But yeah, a bullies freedom of speech and someone with green hair crossing paths will cause some potential friction. If not right there on the spot, people will vent online. Case in point, there's this guy Nick Szabo , intelligent person, but damn his Twitter feed and contributions make you wonder if he dresses up as a klansman in the nights.