The
main problem is the culture of
consumerism.
I wouldn't say we're hedonistic creatures by nature. It isn't good for us to be hedonists. I would say that hedonism is simply the nature and logic of consumerism, and consumerism—and indeed, hedonism—derails healthy human virtues, tastes, and habits like a drug and deranges one's ability to reason about reality and the good.
Consumerism is intrinsically market-oriented and thus all about satisfying the desires of the market. In a hyperliberal culture that privatizes and relativizes morality and makes "freedom" from all restraint the ultimate end of human existence—full stop—that means the market is effectively god and that no desire can be wrong (in practice, this is complicated by the unfeasibility of ultimately attaining such a state of affairs).
Naturally, hedonism doesn't sit still. Once it slakes its appetite for something, like a vampire, it wants to move onto something else. Its appetite only grows. Hedonism is a death spiral of indulgence of ever increasing depravity. In an amoral environment that produces people lacking proper moral and intellectual formation (apparently moral formation is "fascist"), and without at least the guardrails provided by law rightly understood, it is an easy death spiral to enter into.
If life is seen as objectively without meaning, then all that remains is hedonism. Our age is full of nihilist thinly papered over with hedonistic distractions.
So we're nihilists. We live in a nihilistic consumerist culture. Nihilism leads to nothingness and death.