Too many confounding variables. As vaccines increase immunity, protective measures such as mask wearing and social distancing and travel restrictions are droppe

Too many confounding variables. As vaccines increase immunity, protective measures such as mask wearing and social distancing and travel restrictions are dropped, increasing spread. There’s also the inverse effect where increased spread leads to higher vaccination rates. Across different countries the testing methodologies are too different to meaningfully compare with. Finally your last paragraph only applies if the vaccinated person gets infected with delta in the first place (in other words has a breakthrough infection). 95% of COVID-19 deaths are happening among the unvaccinated right now, you’re spreading FUD about what’s basically a miracle.