There appears to be evidence that folks who had the vaccines are more likely to die from delta than folks who were not vaccinated..
If true the Antibody-dependent Enhancement fears may be coming true
You can disregard all Antibody-dependent Enhancement fearporn., The UK had vaccinated the most vulnerable. When the more transmissible Delta (even among the vaccinated) came through they suffered worse outcomes...
Because they were most vulnerable!
Also you can disregard the fearporn about Delta. All we know is that it’s more transmissible. It hit India hard but has quickly subsided there.