Your original point was we got lucky with the Delta variant because our current vaccines still work.

I'm saying it doesn't matter - even if we had a 100% vaccination rate, some new variant will develop someplace that's being ravaged right now (say, India) and spread to the US eventually anyway. If our vaccines still work - great... if they don't, well.. where are we then?

Lastly, the numbers already indicate it's statistically not a threat to the overwhelming majority of the US population as-is.