I always thought the media coverage stated that even fully vaccinated people can get infected and can get sick, but that the symptoms / repercussions of being sick when vaccinated were significantly reduced.
A "living with it" strategy would need significant data on the hospitalisation and/or mortality rates of vaccinated vs non vaccinated and even then, I'm still not convinced that we would live with it.
I don't think we have a choice. Everyone vaccinated, booster (I see Israel is doing 3rd doses now) and whatever other things arise in the next few months. Ive heard anti-virals mentioned, not sure what that is, maybe an inhaler that can protect you from inhaling the virus? Sorta like washing hands but in the nasal passage? Perhaps the booster will be better with Delta. Lots of things to learn still