Not that I am disagreeing with your main point, but in my experience Leonardo has a special place in MSM mythology, because they can invent ANY liberal tendency for him and the mystery surrounding his life along with his obvious brilliance and foresightedness makes it believable. Thus, Leonardo was “gay” (even though he had several mistresses), Leonardo was an athiest (even though there is no evidence to support this, and the main subject matter of his limited body of artwork is deeply religious), Leonardo was afraid of “Global Warming,” etc.
I completely agree with you. But even though Leo has a big place in MSM mythology, one thing we know is that they also love to eat their young (or in this case, their “old” ). The people they build up soon become opportunities for them to tear down.