I think his meds must be scrambling his brain even more than usual. Wouldn't "adapting" mean doing things like wearing masks and socially distancing and restricting one's activities to what is most needed? But this analogy makes no sense anyway.
First of all, the millennial generation isn't the one dying like flies from this, so telling them they're the ones who "have" to adapt is likely to fall on deaf ears. They'd argue they are adapting--by going back to in-person jobs, and by flocking to bars and restaurants as if nothing was different, and by and taking their kids to Disney World, and by pressuring schools to open (news flash, Rush, the millennials aren't kids anymore, and are out of college and many have families of their own). Obviously, many (probably most) millennial's aren't doing these covid-denying things, but it's odd to pick on them in particular for being too cautious during this crisis.
Secondly, the Donner party did something highly unpleasant to survive. In the case of Covid-19, the things people do during Covid-19 to survive, and to entail the survival of others--wearing masks and social distancing--are idyllic.
Third, most of the Donner party died, which doesn't have to happen with this virus.
Fourth, the Donner party was eventually rescued.
