i wonder if it's difficult, if a person's entire personality is consumerism

Imagine this. Schools educate children to be consumers. They are educated to have the mindset of employees. Capitalism benefits from the education system without lifting a finger.

On this note, did you realize it's not something akin to fantasy because it is actually happening in the real world?

It is, because it's not a replacement for true happiness and depth.

paideia, arete, eudaimonia

It can be if they're eyeballs high in debt.