Please don't use Delta as excuse. If you read the internal report from CDC (WaPo has it), one data (from nursing home) from Beta variant (note, not Delta) says 61% infected cases are vaccinated. Delta is more contagious, but we're still not sure its severity as of now. Data from UK/India says it's not severe.
Disclaimer . I am not against any vaxxxers. Many of them here, even vaccinated, support freedom of choice, respect choice of unvaxeers. They earned my respect. I am against this witch hunting campaign on unvaxeers started from July.
Link: https://mobile.twitter.com/Trumpgirl19632/status/1420552283360727040