1. They can only demand his inclusion in a coalition if he passes the threshold first and actually has seats!
2. Is he being friendly with these other parties and making them want him in coalitions by not aligning technically with them right now to pool the votes and make sure multiple parties get in?
Being friendly isn't being them. Everyone I talked to about it didn't see a difference from Bibi; Bibi says he's right and has a party of freaks that aren't, and he does left wing things, figured he'd be the same. Let him run on his unadultered message and people will want him. He can still be all Chofetz Chaimey to them and show them real love and not speak lashon hara about them, but tell them he wants what he wants and it will be good for them and for what they want.
A rebellious band looks less likely to get in than a strong leader. Let him run as not he's going to be president this term, possible or not it sounds conceited and unhelpful, he can run a campaign on how he will change what one knesset seat will give him the power to change, for the people to the people and for the other parties to them.
Moshe Feiglin fought for someone I knew. His wife went off the derech and divorced him, went to secular court. Secular court demanded that my contact pay more than his well paying job was paying in child support, an absurd amount. Obviously, this was not possible, so he was to be an indentured servant to the state, paying what he could to her and a hefty fine every month to the state for not paying their full amount. Moshe Feiglin is the only one who would lift a finger, but he isn't in the knesset so he didn't have the power. Chaim has a story like that, and there are others, make a list of "what Moshe could do for me" and there's your political testimonial, not "hi give me power to run your life I'm nicer than the last unmitigated wiener", "hi, I want to help people more, give me enough power to do that". I don't know how he can help the other parties, as far as I've seen everything they want is bad, but they love their mirrors and when people say nice things about them, so something that would help their egos chametz up more nicely, like giving them credit for the stuff he does to help people sometimes, could work, maybe someone who can listen to them talk without losing their previous meal can give ideas. I see little boys on sodomy chairs and them pretending to be tough righties defending it when they open their faces, I should have spent more of my time controlling my rage instead of using it on people.