Most red states haven't even abolished affirmative action in the public sector. The states that ban affirmative action are a healthy mix of deep blue, deep red, and swing states. California was the first state to end affirmative action through ballot initiative and it was upheld by an even stronger majority in 2020. This is an issue where I don't align with most others on the left. I hope the Supreme Court issues a sweeping ruling eliminating affirmative action. The Equal Protection Clause means little when affirmative action is allowed. There are many other ways for schools to ensure diversity. They just want to take the easy way out.
That's beacuse the biggest opponents of AA are asian americans (who, by the way, are still victims of racism) and California is the most asian US state.