To be fair, even assuming Luke’s retelling is accurate, it kinda felt super out of character for him to “unknowingly ignite his lightsaber”. Last time we saw the guy in movie cannon, he had just thrown away his lightsaber while facing down two Sith Lords, so strong was his belief in the good within his father. He was a Jedi Master, trained by Yoda to control his emotions. And I dont think it would be unfair to assume he got better at this since ROTJ.
But instead, he got so bad at self control that he pulled out his weapon on his nephew, over a bad premonition. Then when shit hit the fan, gives up completely and goes full hermit mode. Just didn’t feel like Luke to me. Instead it felt like Rian Johnson just wanted to make a point about hero worship and to subvert expectations.
I agree with your overarching points in the meme. But I’ll always be sad to see, what felt to me like, the character assassination of Luke Skywalker.