It sounds like can fiat currency kill BTC! I ready doubts about this concept of CBDC and its potential. Most of the country in the world doesn't have the ability and resource to create and maintain their own CBDC. Allowing crypto assets and taxing them is less costly and convenient for the govt than creating CBDC. Also, I do not find many similarities between them expect their use case. So talking about killing one another is irrelevant.
Look for other opportunities as well. There are many successful business. One of my friends lost so much money in crypto - he withdrew all the money and invested in local property
If you are that much interested in crypto - then find a good friend in the other region where crypto is legal and find a good solution...