I will never make this, because this would make my BTC suspect. And there is a risk to make my BTC's dirty.
Bitcoin do not have to depend on any other coin before you can have privacy while using it, you will need to use a mixer sometimes to maximize privacy.
On Dex can be the issue if low volume, but on reputed mixers, your coins can be effectively mixed as you planned it.
According to Chainanalysis:
crypto mixers are not explicitly illegal in most jurisdictions.