Dialogue with whom?

The latest development of not very interesting history of PD (Italian democratic party) is its possible participation in the national demonstration born from the web, the No Berlusconi Day on 5 December. An initiative born from blogs and a facebook page with 350,000 fans. A rally to ask for the resignation of the premier for a number of very good reasons: his pending court cases, his attacks on press freedom, his conflict of interest.

Reasons why in any other civilized country a political leader would have already resigned voluntarily or would have been forced to resign by his own voters and allies. But not in Italy where his majority and his fans, who revere him in a sort of personality cult reminiscent of Stalinism, defend him with drawn swords, but also what in theory would be the strongest opposition party has never explicitly asked for his resignation, nor has it ever held a demonstration against him. Yet in addition to the reasons mentioned above there are many more for which an opposition party should have done it.
If Berlusconi had only the pending trials and the conflict of interest he would still be unfit to govern a country, but one could also understand the willingness of PD to talk with him. But beyond this, Berlusconi will not tolerate an independent judiciary nor the press freedom that Italy has left, and he is actively seeking to destroy them. You can not bear such a man as head of the government. It's true that demonstrations cannot do that much, because in the end only the election results count (although in the case of Berlusconi, given his power over the media, Italian politics should never have let him stand for election) but at least rallies may serve to protest, raise awareness, force the ruler to change his behavior or at least let him know that he cannot do whatever he pleases without resistance.
Beyond this, there are many other reasons why it is right and necessary to demonstrate against the prime minister: because his government has passed racist laws and rejects the refugees in violation of all norms of international law, because he wants to build nuclear power plants in Italy despite the Italian citizens have chosen differently in a referendum, because he isn't doing anything useful to address the crisis and precarious jobs, because he is destroying the public school, university and research, because too many members of the majority are suspected of contiguity with the mafia, because his coalition attacks civil rights in the name of religious fanaticism, because his governement has cut funds to culture, because his "great works" are not made in the public interest, because he is a hypocrite who pretends to be a Christian, made laws against prostitution and then in private behaves quite differently. Each of these reasons would be more than enough to demand the resignation of a prime minister and demonstrate against him. Here in Italy there are so many that it is hard to remember them all.
There are at least a dozen reasons why Berlusconi should resign, what reasons there are to talk with him? "Because he is moderate, tolerant, humble and willing to compromise? Surely not, so the attitude of the PD can only be explained as a kind of Stockholm syndrome: they are so accustomed to an Italy abducted and humiliated by Berlusconi, that now they like it.
But the real opposition of the country but do not like it, and so will continue to protest and take to the streets hoping that someday the majority of Italians will wake up and see Berlusconi for what he is. Among other things, a man unfit to govern Italy.