Keep in mind what I posted above. This bill does not repeal Proposition 209. Having been a ballot proposition, Prop 209 can only be repealed by a ballot proposition. This prevents the legislature from over-riding a vote of the people of CA. This bill put on CA's November ballot a new proposition to repeal it.
Will CA'ians repeal Prop 209? I don't know, but my WAG is that this repeal effort will fail in a fairly close vote. A joker in the deck, so to speak, is that the net effect of restoring Aff-Am is that not only will whites be targets of discrimination, but so also will East and South Asians (just as, e.g., at Harvard). And I think many ethnic East and South Asians know they and their children will be targets. East and South Asians are only a few % of CA's population, but in a close vote, those few % could loom large.