Historically I still “lose” these types of arguments as my willfully ignorant interlocutor spams potential strawman and ad hominem “arguments” until they feel sufficiently convinced that my pesky facts and I are safe to ignore.

In my experience there are very few people worth arguing with, as there are very few people willing to argue in good faith. Most people see arguing as a battle to be won or lost rather than a mechanism by which to vet assumptions. How can you expect to argue with a person who is unable to argue with themselves?