No, you are getting it wrong. Bitcoin will continue to be Bitcoin and work as it has to this very day, CBDCs are completely different financial instruments issued by the central banks or governments of countries, those are supposed to function as the future replacement of cash for everyday transactions and (because of their electronic nature and their centralized nature) there are serious concerns on their role when comes to massive surveillance of the population. They do not have anything to do with Bitcoin.
When digital cash or CBDCs start to become mainstream in the most important markets of the planet, Bitcoin will continue to exist and co-exost with those new centralized coins. Bitcoin will continue to be decentralized and peer to peer as it was always supposed to be since his creation. So there is not much to worry about it.

I would recommend you to read what  the definition of CBDCs are, and the possible effects on the economy of countries like the USA and the European Union.