Geekdad Matt Blum has proof that George Lucas is an evil genius. It makes as much sense as anything else these days:
My kids are pretty smart — I don’t like to brag, it’s just the truth. …So why, then, are they so drawn to a character that causes near-universal revulsion in those past puberty? Yes, exactly: Because George Lucas cleverly designed Jar Jar Binks so that kids would love him but adults would hate him. Why would he do that? Because it’s part of an evil scheme to take over the world, of course.
Of course! It’s so obvious!