what fauci is saying is only meaningful insofar is it pertains to seniors or other vulnerable people that aren't getting vaccinated. if every senior gets vaccinated, the risk regarding the spread in young people reduces to the developing problem with variants. but, it doesn't seem like these vaccines are going to be very useful for variants, anyways.
i'm sorry to say it, but i care more about myself than i do about society, and i'll argue that's the best way to build a social system, through enlightened self-interest. what that means is that i realize that, at this stage, the vaccines are better used on people that need them more, and i'm better off avoiding the weak than i am wasting a vaccine in my arm, that is probably already nearly useless.
if i happen to infect somebody else that is young, i take no responsibility for their behaviour, afterward. they, too, need to realize the importance of avoidance, but that is their responsibility and not mine.
so, while fauci is making a good point and one that should be pondered carefully and reflected upon in terms of adjusting behaviour, rogan is fundamentally correct - vaccinating young people at this stage is the least of anybody's concerns, and probably of minimal actual efficacy, so long as they're practicing proper distancing from those that need it.
young people that are in contact with the vulnerable, however, should be vaccinated.