Also I don’t fully by people’s explanations to the OP’s 1st point that since the rest of the parties focus on everyone but the Charedim only the Charedi parties can look out for them. When the cell phone prices went down that saved Charedim just as much money as everyone else. When a fence was built on the Egyptian border to keep out African infiltrators that kept Charedim safer just like everyone else. When 3 year olds were allowed to go to gan for free that probably saved vastly more money for the charedim than any other sector in the country.
And as for the charedi parties looking out for the klal in general – my gut tells me that when they get fund allocations that money mainly gets sent to institutions specifically associated with those parties, not just any old charedi organization just because they are charedi.
The only ones that were truly concerned about frum Jews as a klal as well as all of Am/Eretz Yisrael was Eli Yishai and his party. Unfortunately certain people were determined to ensure that worthy goal was not accomplished.