@cassie
Towards left-leaning people opposed to crypto, I remind them they are speaking from a "position of privilege" and they don't even realize it, precisely for the difficulties you described in your post. That has been powerful in changing minds.
The right-leaning audiences opposed to crypto are a bit rarer and take little convincing beyond strictly authoritarian viewpoints that argue all money must be traceable, largely because they've taken on the task of trying to make support of crypto a party-aligning wedge issue, and for the latter camp informing them just _how_ easy it is to trace bitcoin and how _minimal_ it actually preserves privacy in any practical sense is typically sufficient.