Fester, it's not all you.
I know they say it's [almost] all the rider, and hardly any "the bike".
But you will never convert Miss Piggy into a silk purse.
Just accept her as a cheerful all-rounder with a definite bitumen bias.
You are right, not to restrict yourself from exploring any dirt roads that you happen to come across (provided they're not oozing mud / sand / limestone-ball-bearings). What with all the radars and careless drivers on the main roads, it's a definite pleasure to get away on a slowish ride down those country side-roads.
Riding techniques aside, there is much to be said for fitting a tubeless TKC-80 to the front wheel [as PeteW favours] or maybe a tubeless Mefo Explorer 100/90-19 [which has probably a shade less bitumen grip than the TKC, but is cheaper and longer lasting].
Unless you are a hard charging, hard braking, elbow-scratching on every corner type of rider, then those sorts of dual-purpose tyres will do quite nicely . . . and you will be able to enjoy much more side-road freedom than a Michelin Pilot Road tyre would give you.
* I must criticize you severely for a blunder you made (back in post #30 ?) where you implied some denigration of Dr Karl Kruszelwhatsit.
Whatever you think of his science, you must admit that he consistently shows the safety consciousness of wearing hi-visibility tops.
As I understand it, he has never been hit by a car yet.