People have always been able to abuse tools. That doesn't mean we should abandon the particular tool.
There are cryptos that are close to 100% private, and they both make it so that privacy minded persons have an option, and it also takes some of the disagreeable actions of the BCH.
I guess to me the "public ledger" was one of the big appeals that Bitcoin first had for me. I imagine government spending on a public ledger being quite easy to track.