We can live without billionaires but billionaires cannot live without us, in the same way that a body can live without cancer, but cancer cannot live without a body.

At the risk of telling you something you already know: there is an emerging critical lens called 'childism' which you might find interesting.

I like the 'positive' version of it (like feminism), but there are useful things to be gleaned from the 'negative' one (like racism).