Litecoin has a built-in privacy tool too. It is optional to use but it is there if you need it. That way litecoin has the best of the both worlds. It is not going to targeted by the government and businesses (they may not accept ltc that use mimble-wimble though) and it is not always semi-anonymous like bitcoin. You have a choice.
I wouldn't say it was not targeted by businesses because several exchanges delisted litecoin after they introduced mweb upgrade, even if they didn't have to add support for mweb addresses.It's interesting that mimble-wimble could easily get implemented in Bitcoin (there is proposal already) after years of working fine in litecoin, but I am almost sure Saylor and his followers won't support that.
You can have privacy on-chain, it's just becoming more and more difficult. Joinmarket, for example, is decentralized coinjoin. But, I doubt it's getting the necessary recognition, and it's pretty expensive to be honest.
Edward Snowden said something interesting few days ago that money must be private by default, and that should not be illegal anywhere.