I'm as libby lib lib as they come and I can say with no reservation, Michael Moore is an absolute idiot.
Chris Kyle, just like every one of us, had both good and bad qualities that were enhanced by his life experiences. How we are portrayed can be either good or bad depending upon what the portrayer chooses to focus on.
Albert Einstein was a serial cheater. Ben Franklin loved prostitutes and was a serial liar. James Joyce loved to write his wife dirty letters about how much he loved her farts. Beethoven wrote 40 letters that we know of with poop jokes, several of them regarding poop and sex and licking anuses. So it goes.