In God's name we can compare musicians of every genres, because a Mountain has only one pinnacle, but many sides. So musicians of many genres climb the slopes to reach the top and can be compared objectively by the altitude, but not by the routs and methods of climbing.
I was simply stating un-eagerness to attribute some titles to musicians, whose musicianship (accentuation, universality, education, phrasing, depth of nuancing, complexity of harmony, elegance of application) is not that of professionally trained "classical" or "serious" musicians.
The top quote is all that applied to you, you are correct in some of your comments but you are off the wall again with your last. If you knew anything about Irish Traditional Music you would understand that it comes from within the musician, yes anybody can play it but only some can master it. You cannot learn to be a good Irish musician you have to have it in you. To even suggest that Irish Musicians who spend their lives playing are not "serious" musicians only validates my point.
I know a lot of classically trained musicians with full grades who have tried to cross over to Irish music and failed because they lack music! Everything seems so analysed and robotic and really does not work for Irish music. If "accentuation, universality, education, phrasing, depth of nuance, complexity of harmony, elegance of application" were that of what you consider a "serious" musician then we would really have a problem in Irish Traditional Music. You cannot learn from a book to be a good Irish musician, you need to immerse yourself in the tradition where you can develop your own style and not just play a tune the exact same as everyone else plays it.
So as I stated before, you cannot compare Genres! You may aswell be trying to compare Michael Phelps and Usain Bolt. And in case you haven’t noticed, there are many mountains.