Here we go: Haredi UTJ party proposes law to disband Knessetboycotting the Haredi parties" (link in Hebrew).
The article states that Maklev's argument is that Netanyahu is being forced to establish a coalition he doesn't want, that Bennett and Lapid are inexperienced (which is true) and that they are acting out of hatred (which is also probably true) and in disregard of minority rights.
"This government will act as a government within a government and will not be able to deal with the burning issues on the agenda... and will endanger the country's economic and national security future...."
You might view this bill as a protest bill, but if it's brought to a vote and fails, no similar bill can be reintroduced for six months.
A way to put pressure on Yacimovich?