Here are several more peer-reviwed primary sources that present strong evidence & theories supporting the fact that "vaccines cause evolution of variants" [1][2][3][4].
Note that, no one is claiming that ONLY vaccines cause evolution of variants - obviously a virus will evolve naturally through random mutation as well, and that is acknowledged in the cited sources.
> You are again posting evidence that does not back your argument
If you take a few minutes to read the sources I've linked to in the this thread, you will see that they corroborate everything I have stated. These ideas are relatively new in the last decade or two, so you may not have heard of them before. That does not mean they are unfounded or based on logical fallacies as you claim.
> Given that the evolutionary millieu had low vaccination rate and that the variants are more infective in non-vaccinated populations, we know this is not the case.
You continue to use the same unsupported points and build on them with logical deduction. I have given you plenty of counter-arguments supported by peer-reviewed literature.
If you have nothing else to add to the discussion, then I will not be continuing it.
[1] Imperfect Vaccination Can Enhance the Transmission of Highly Virulent Pathogens https://journals.plos.org/plosbiology/article?id=10.1371%2Fj...
[2] The adaptive evolution of virulence: a review of theoretical predictions and empirical tests https://www.cambridge.org/core/services/aop-cambridge-core/c...
[3] Why does drug resistance readily evolve but vaccine resistance does not? https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.2016...
[4] Monitor for COVID-19 vaccine resistance evolution during clinical trials https://journals.plos.org/plosbiology/article?id=10.1371/jou...