You must‘ve only read the first line of my post considering how fast you posted this. I just told you why it’s almost definitely not him.
If you can’t share any more evidence besides “if Saul lived, then so did Yorki” then I can’t take your claim seriously. You’re not even saying it’s a theory but rather a sure thing, which is rather bold and annoying of you.
Dig up more evidence or time travel to the future and get it. If you don’t have anything more to say, then that’s it from me.