Royals may be inbred and slack-jawed, but at least they are born from a centuries-long tradition and raised for the task of governing and representing the Nation as a whole.
Politicians, on the other hand, are amateurs who survive our Darwinian political process by being as ruthless and unprincipled as they can be. The bigger a bastard one is, the better one will do as a politican in a republic or democracy. Both systems are tailored to select for the best con man, not the most capable leader.
Please do not make the mistake of identifying Europe’s current crew of debased “royals” as true aristocrats. Most of them are no better than the scum over whom they supposedly reign. There are, however, true nobles left in this world, and someday God will raise them up to pick up the pieces of Mankind’s disastrous attempt at self-deification.
Name a few so that we can get to work on killin' 'em off.