Bitcoin and CBDCs

I recently listened to Saifedean Ammous podcast about his latest book the Fiat Standard and near the end he predicted a scenario where CBDC and Bitcoin may coexist where the latest one serves as a way to “escape” the totalitarian control of CBDC and keep your freedom.

I agree with him on the possibility of this scenario. CBDCs will be like todays digital payments with the scary addition of govs limiting or even banning things they don’t want you to buy or spend on. So assuming that’s the case, and BTC being a threat to it, wouldn’t they also ban us from buying it? How would someone who earns his income in CBDC be able to buy BTC?

I know it’s just a future (very speculative) scenario but interesting to hear what y’all think.