Was going to answer to say exactly this.
The more vaccinated, the merrier the world with less variants
The more vaccinated, the merrier the world with less variants
Simple evolutionary biology suggests resistance develops from roadblocks or mechanisms to stifle. We see it all the time in antibiotic resistance, resistance of insects to pesticides used in crops, all kinds of areas.
I don't see a reason this case would be different.
I might be wrong, but it seems obvious to me that this should reduce variants