Why are pro-housing groups split on Proposition 45?

For nearly a decade, Yes In My Backyard (YIMBY) activists and other pro-development advocates in California have sought to overhaul the state's signature environmental law to facilitate increased housing construction. This longstanding effort has culminated in Proposition 45 appearing on the ballot.

While the proposition is intended to address the state's housing needs, it has caused a division among pro-housing groups. Supporters of the measure argue that it would, among other things, help clear the way for more housing development by reforming current environmental regulations.