Then we will see no more mutations beyond Delta since it is clearly able to infect, replicate and transmit through the vaccinated quite effectively no ?
Each vaccinated person can favor a wide variety of mutations. No reason to assume they'd only favor one particular mutation from the seminal form.
It seems that if Delta is able to infect, replicate and transmit through the vaccinated just fine, then it would be no more or less likely to produce a mutant strain than in an unvaccinated host.
Each individual vaccinated person is a variant manufacturing machine all his own (for reasons already explained to you). Viruses don't communicate with each other long distance and agree on only one variant stemming from the seminal form of the virus.
Each host, vaccinated or not, is a variant producing machine.
Viruses were mutating long before mankind ever developed a vaccine of any sort.
The desert is a true treasure for him who seeks refuge from men and the evil of men. In it is contentment In it is death and all you seek (Quoted from "The Bleeding of the Stone" Ibrahim Al-Koni)
