FPM does not want to rule alone and knows that very well, which is why everyone voted on every single one of the plans it tried to implement. The absolute minimum it can expect from its coalition is neutrality toward projects that help ALL constituents, insa support that's too much to ask for. Instead, the coalition led by Amal scuttled every single project and to top it all blamed them for it. Tefe7 el keyl, especially with the corrupt tampering of the audit contract by Wazni. After all this, how do you think the average FPMer views the insistence on the MoF by Berri? I am sure the average FPMer reeling under the economic condition is going to applaud FPM for forming a government with Berri. All he sees is minister Patek Phillippe wasting north of $16B that he has to foot the bill for from his own savings. Go tell him he has to think strategically now, I am sure he's all ears. You're seeing it unfold in front of your own eyes on this very forum.
Since your alliance is with Hezballah, you have to discriminate between what concerns all of the Shia and what concerns Amal alone. And what concerns Hezballah and what concerns Amal alone. Jumblatt is unofficially allied to Berri. When Jumblatt has problems with Hezballah, he doesnt go against Berri.
When Berri blocks your projects, you can block his projects. But when it comes to an issue that has to do with the entire sect, your unwavering support as allies of the bigger Shia party is expected. Similarly, Amal couldn't block the election of Aoun. Amal couldn't block the FPM from reclaiming its ministerial representation as the largest Christian party.
Your problem therefore is generalization and vendetta as a misplaced priority or in the wrong place or at the wrong time.