The Simpsons/Trump/Escalator was debunked... it turns out that the Simpsons animators re-released that "section" of the episode AFTER Trump's video footage down the escalator.

See here: https://www.youtube.com/watch?v=kXjyd0W83yo

As for this 2011 episode with the kidnapping reference to the pizza arcade... strange for sure! But could easily be explained as a coincidence, like they've explained on Reddit back in December 2016 (I believe it was linked to a 2010 kidnapping from Little Caesars)