What?!?! I have no idea what you mean by all that. If Vader wasn’t “the elder Skywalker”, then how could he be Luke’s dad? If Ben didn’t know Vader was Luke’s dad, who was this other lightsaber wielding good friend that he assumed was his dad, and why didn’t he know who his dad was in the first place? Whoever thought of this convoluted idea is thinking too hard.
The idea is that Skywalker’s lover (Luke’s mother) had an affair with Vader that Ben never knew about, leaving him to assume that clearly this child is a Skywalker, when Luke was actually a Vader.
Thank you.