[hcarvalhoalves]

Protests on that scale only happen when the economy goes downhill like it did in Venezuela, because the igniter of those kind of protests is, usually, the middle class.

Last year's protests didn't escalated into impeachment because despite blatant corruption and bad government spending, the current government represents the left and that means any movement against it doesn't have the support from the intellectual elite or the media. In fact, the protests started largely as a left movement, asking for more government (lower/free bus fares means more taxation elsewhere), and gathered more support after the clashes with the military police (which is still seen as a product of the authoritarian conservative right of the 60's).

Unless the economy in Brazil tanks and the insatisfaction increases massively, protests against the government will be limited to anarcho-extremists. Until then this incompetent bolivarian left will keep brainwashing the population, invoking the shadow of the authoritarian right to stay in power.