> the unvaccinated would have immunity from just the one variant and not all of them uniformly
And "the vaccinated" have immunity from just one protein, from one variant, which is even lower.
If anything recovered people have better immunity, not worse.
The best strategy right now is to get vaccinated, and also get Omicron - then you have the best of both worlds, without the risk. But someone who took the risk, and recovered, is perfectly safe.
Even worse, it's immunity to a spike that hasn't been around for years now. The vaccines were developed for the 2019 strain. The idea that people who got it and recovered two months ago have less immunity than a vaccinated person is based mostly on statistical biases in the way public health agencies measure effectiveness, that can create the appearance of (temporary) effectiveness in water.
And "the vaccinated" have immunity from just one protein, from one variant, which is even lower.
If anything recovered people have better immunity, not worse.
The best strategy right now is to get vaccinated, and also get Omicron - then you have the best of both worlds, without the risk. But someone who took the risk, and recovered, is perfectly safe.