The amount of "creepiness" you take from a PT fan being able to relate to events in those movies is how specific you cause those events to be. I mean, you could do the same thing with the OT as well. I agree that everybody could relate to it because it contains those primal chords that resonate with all of us. Good vs. evil. The longing to do something important with your life. Moving forward after the loss of loved ones. But if you start getting specific, then it makes the OT fans seem a little bit "creepy" as well. I mean, how can anyone in the U.S. today possibly relate to their adoptive guardians being blown to cinders by a military regime looking for their robots? Are we really normal if we can relate to being sheltered by an old man in a cult-like religion who convinces us to sell off our worldly possessions and use the money to pay for us to go on a crusade to save the universe? And I doubt very many of us have had to choose between suicide and joining our homicidal, fascist father.
Making more general points, I can certainly understand how some people can relate to the plot points in the prequels. I've certainly never had to hide my lady love from the general eye because I'm a warrior whose code doesn't allow me to marry, and she's a political figure, but I have had the pain of an unrequitted love, and, I'm almost ashamed to admit this, but at 16 I was able to relate to Anakin when Padme was fighting off his advances. Maybe I'm just a whiny loser, but there it is.
So it all depends on how specifically you want to make these comparisons. I doubt any of the PT fans are looking to kill *teehee* Younglings to save their dying wives.