All these little statistical manipulations are shit, shit science and shit math. Even if there is correlation, that's not causation and it's not even correlation if there are other unexamined variables that can account for they why. This goes triple for Omicron which has only been around a couple of months.
Hate on the unvaxxed is terribly misguided, but especially for anyone in the medical profession. You're gonna hate your patients? WTF? I'd bet a demographic and economic analysis of the ICU patients (very few anyway) would change a lot of minds as to who these people are.