Especially because my hs is in san jose, almost everyone from my school gets in, hence why I classified it as a safety.
Do they all get in for CS? Probably not. You are confusing general admissions stats and notions of “eliteness” with the CS admission landscape.
You have to go a few tiers below UMD and Purdue for a true safety in CS. But if you pay attention, and apply EA to UMD and Purdue and UT, you will have a much better chance.