My nightmare

"Wouldn't it be great if anybody who speaks out against this country, to kick them out of the country?" - Rush Limbaugh

Sure it'd be great, if you're the one doing the kicking. Let's bring back the Alien and Sedition Acts of 1798 and the Sedition Act of 1918 while we're at it.

Here are some "bad" ideas Limbaugh's suggestion would do away with:
1st Amendment
Bill of Rights
Constitution
Democracy

"It is always to be taken for granted, that those who oppose an equality of rights never mean the exclusion should take place on themselves." - Thomas Paine, Dissertation On the First Principle of Government