Israel’s bombing of Gaza is “genocidal,” according to the home page of the critical race and ethnic studies department at the University of California, Santa Cruz. Such a statement would be considered political and would be prohibited, according to a new proposal by the regents of the University of California. Under the proposal, academic departments would be barred from posting political statements on their home pages. And any political statement issued by a department — in any venue — would need to meet stricter guidelines. The regents are set to vote as early as Wednesday on the plan, which would apply to the U.C. system’s 10 schools, including Santa Cruz, U.C.L.A. and Berkeley.