4. is critical. Already SYRIZA is being blamed for everyting from supporting illegal immigrants to causing street riots and "subverting the rule of law" (the "liberal" side is now suggesting that civic disobedience is pretty much "fascist" violence in disguise), while at the same time a nazi / criminal gang will be in parliament so with immunity etc.
The media, especially after the crisis, are almost entirely owned by the elites and their backers. At this point they are all politically delegitimized along with the parties they support but they exert social influence and can shape agendas...

Having said that, I want to make clear that the chances of SYRIZA leading a Left government after the May 6th elections are close to nil (barring a miracle) since the Communist Party has declared that there exist no government inside capitalism and the EU that can help workers and that it has no plans of supporting (much less participating or creating an electoral front with) anyone, much less the petty-bourgois reformists of SYRIZA. So a good result at this stage would be for the two big and corrupt parties to not achieve a majority and they would probably need less than 35% combined to achieve that.... If they don't then again this is a political event of some significance since there will be no government to pass the austerity measures for at least another two months, and there goes the programme... If this happens the next election will not be held under the same political conditions as the current one...

The road of excess leads to the palace of wisdom - William Blake