This is a different objection that has nothing to do with the UCSD report. UCSD is concerned about whether students are prepared to handle college math. They are looking for basic readiness. The report isn’t saying that they want to select students with 1500+ SAT scores.
As an example of how UC could use scores to demonstrate readiness without using scores for admission:
UC could add a basic readiness check to the minimum requirements for UC admission, that could be fulfilled in multiple ways (and I’m just throwing out some options here): (a) grade-level “Standard Met” on the CAASPP (taken by most CA HS students); (b) SAT or ACT score that demonstrates readiness for college math (we’re not talking about scoring 1500 here); (c) AP exam scores demonstrating readiness for college; (d) qualifying community college course.
This type of readiness check is already in place for the Entry Level Writing Requirement (ELWR), but it’s currently used only to place students in writing courses after they enter UC. Entry Level Writing Requirement | University of California
This is a totally different issue from using SAT scores in the admission process.
My S23 is a junior at UCB. He’s an EECS major and has received straight As since his first semester. He wasn’t a great SAT test taker and didn’t get 1500+, but he is outperforming many of his fellow students who did. (He did receive a 5 on his AP Calc BC exam, but it was taken in his senior year, so it was irrelevant for college admissions.)
Did my son not deserve his admission, in your opinion? Because if UCB was looking for students with 1500+, he wouldn’t be a student there.