To be honest, I can't see any reason you are interested in Bitcoin to begin with if you only want to change it into the systems already available.
Funny I can say the same about those wanting to turn Bitcoin into a glorified form of cash. Just use cash instead, it is far more anonymous and stable than Bitcoin.
You can't shove cash into a USB port (or go to some random bank) and anonymously send it to someone else halfway across the world in a few seconds.
Further, no one is approaching central banks and trying to convince them to change their cash, or their systems. Instead, an entirely new product was created for the sole purpose of acting as digital cash, and we've all just decided to use it.
So forgive me, but your statements seem a bit disingenuous.
But let's suppose enough miners and exchanges relented and implemented blacklisting to cause "tainted coins" to not be worth receiving.
Let's also suppose that the masses of us who came to bitcoin for what it was then left and created Bitcoin 2, with automated coin-mixing. (Because believe me, that's what would happen.)
Would you be satisfied because your goal of turning bitcoin into the currency you wanted was achieved? Or would you begin advocating for anti-anonymity changes to Bitcoin 2 as soon as the first theft occured (or earlier?)