Everyone says this but reality never seems to work out that way when push comes to shove.

Will you be singing that tune when a religious minority you hate moves there, establishes a theocratic government, starts teaching women to read, hanging undesirables and troublemakers and regressing on pretty much every human right your ancestors died for, bonus points for starting a war with the locals.

That said, in the historical example I'm referencing the state was too weak to do much about them from afar and they did clean itself up after subsequent immigration diluted their culture over the following 100yr. God what a bunch of assholes they were in the meantime though...