It's perfectly possible to use crypto without centralized exchanges and many people do so. As "centralized crypto" continues to fail, people will use it in a decentralized way more and more. I don't see how the conclusion is "don't use crypto". People seeked simplicity, found out there is no free lunch - that doesn't mean they will throw the baby out with the bathwater.

How do you enter or exit crypto? Either through a centralized exchange or you buy/sell from/to a shady dude in the alley.

This is the same as entering or exiting the gold coin market. Buy it or earn it or mine it.