This falls into the "I don't want to use it" category.

No one is forcing you to buy in to a sidechain.

Nothing changes for you with DC.

If someone thinks the risk of a miner stealing is worth the risk for features they like, that is part of their risk profile.

If bitcoin is about freedom, but not this opt-in minimal change that increases freedom, why be against it.

It's the equivalent of telling your neighbors they can't enjoy chocolate icecream because the store they bought it at my steal it, and just as unlikely once you understand the "miners can steal meme " is baseless.