Because CBDC are the complete opposite of bitcoin philosophy. Bitcoin is about personal freedom and separating state and money. CBDC is about centralised govt control and monitoring
So if you found out that a top pentagon official was working as a military advisor for the Taliban, that wouldn't ring any alarm bells to you. It's completely normal and there's nothing to worry about.
I don't have a theory (other that both CBDCs and cryptocurrencies are dumb). I'm merely pointing out that the idea that CBDCs are absolute evil while bitcoin is absolutely against evil is rather inconsistent in light of the fact that some of the people behind CBDCs are also involved with bitcoin.
It's not inconsistent when the designs are the opposite.
Bitcoin is permissionless and payments are uncensorable. A tool against govt power and individually empowering.
CBDC have central control and govt control in the name. The Chinese govt will be jumping at the chance to implement CBDC. Bitcoin is only a threat to their control
But I get the impression that most people's minds are already make up about bitcoin and it's be a while until people are open to new ideas