Why must the Haredi parties sit in the opposition?

In an opinion piece, Oz Ben Nune argues that the Haredi parties must sit in the opposition to prevent a situation where most Israelis are not Zionists, not producers, and not serving. According to him, they have become a 'state within a state' managing separate education and a closed economy.

In an opinion piece, Oz Ben Nune argues that the Haredi parties must sit in the opposition to prevent a situation where most Israelis are not Zionists, not producers, and not serving. According to him, the Haredi parties have become a 'state within a state' managing separate education networks, a closed community economy, and an independent agenda. The article cites data that about 50% of first-grade students today are Haredi or Arab, and within four years the number of first-grade students in Haredi education will surpass that in state Jewish education. It also states that about 65% of Haredi students study in institutions belonging to the 'Ma'ayan HaChinuch HaTorani' network of Shas and the 'HaChinuch HaAtzma'i' network of United Torah Judaism. Ben Nune calls for restoring Israeli sovereignty throughout the country, including in Bnei Brak, and emphasizes that the call does not stem from hatred of Haredim but from concern for the future of the state.

Why must the Haredi parties sit in the opposition?