That's not how DC works though. A successful project on DC might be vulnerable but not bitcoin. To miners and bitcoin its just another hash block. Blind merged minning is already bitcoin core by the way. Your premise requires miner censorship, which is not and has not been successful now despite years of attempts.

If you would read Pauls years of work on DC, you would see that DC actually increases security. More profits for miners secures the network, more... that's the way satoshi designed it. In addition, more miners entering the space means a larger physical lobby against gov interference (Matt Kratter).