Over the last half century or so I have never seen more than a few seconds of this kind of self-congratulatory pablum, including the Oscars.
I go to the theater to watch a movie now and then or buy one on Blu Ray or what have you but not this stuff. I have enjoyed a couple of Smith's films enough that I bought then on Blu-Ray (MIB I, II & III, I am Legend and Hancock to be exact.
His son sucks at life, let alone "acting". I suspect they're boycotting to prevent him from showing up in a nicer gown than any woman in attendance.
Whatever. Get over it and get on with it or get out of it.