Your take on Black Bloc tactics?

Personally, I think the guys who indulge in this sort of crap are just no good punks and ruin the entire point of a protest. 

Protests =/= revolt

Funny thing is, you'll never see these guys stirring up shit in an actual authoritarian state, a third world country, or at an actual sweatshop.

They are the "teeth" of whatever movement they support.  Businessmen in the area know that if there's a riot--you misspelled "riot" there, Sparky, all "protests" are dress rehearsals for riots and are intended to intimidate by implicit threat of violence--the Black Block kids will burn them out and fuck their shit up, so they agitate and demand that the politicians give the environmentalists, or the antiglobalists, or whatever banner the bored rich liberal white kids are holding today, whatever they want.

These tactics are effective because almost all judges in Western nations are Maoists.  Judge Jewberg doesn't care how many people that Molotov cocktail killed when the rioters threw it into a bank, the kid who threw the firebomb will get off with a nod and a wink and a slap on the wrist in exchange for a meaningless promise not to do it again.  These are all rich kids anyway, and no fine or bond the court is likely to impose is at all burdensome for them.

And this is why the Tea Party is a joke, by the way.  This is a bunch of middle-age working-class White men who have too much to lose.  They have jobs to go to and mortgages to pay, and if someone did try throwing firebombs at the cops, they know Judge Jewberg is just itching for a chance to put all of them in prison for being "Nazis."  No one's afraid of them.  The worst they can do is vote for Tweedledum Republican or Tweedledee Democrat and pretend they're not exactly the same.