I agree about self/family advocacy, and for sure some of the doctors one gets are engaged and good. I think doctors generally become less shit as the stakes go up (end of life, pediatrics, emergency triage, etc). The problem is getting them to talk about anything proactively before you get to that point.
My comment was more along the lines of if you know you need Doxycycline for a tick bite and they're holding off, you can't just come out and request it. They'll play the 'expert', defending their ego that they aren't working as a mere rubric-following pill-gatekeeper, and tell you how they know better, even though they hand prescriptions out like candy in other contexts. Rather you need to emphasize the symptoms you do have, equivocate rather than ruling things out (eg the tick could have been on me all day or even multiple days), and focus on the less probable bad outcomes that you're ultimately trying to avoid.