The CDC is playing politics instead of following science.
Covid attacks those with compromised immune systems, but the stats don't adjust for that.
If anyone gets hospitalized or dies the stats pretend that they were perfectly healthy, which may not be the case for "breakthru cases", vaccinated people getting covid.
Same with the un-vaccinated who die or get hospitalized, how many had compromised immune or respiratory systems?
That said I'm vaccinated and feel bullet-proof, which may not be the case for Delta, but I refuse to wear a mask unless I have to.