Bitcoin with Monero on L2 is like Icecream + sprinkles. Each are great alone, but together elevate eachother.
If you don't want sprinkles, thats ok, its a soft fork, business as usual for you and your regular bitcoin use.
It also creates a way to integrate any possible future bitcoin killer. You can claim none will ever exist, but you can't know that for sure. Paul describes DC as a lifeboat.