I believe he has no income so he has to eat whatever slice of pizza, leftover KFC, etc. Kim brings to him. He knows what's in it, but without foodstamps has no choice. Then he'll whine about it later, essentially blaming her for not abiding by his constantly shifting rigid diet. Same hypocrisy where he lectures women about depending on men for stability/income and then complains that Kim didn't give him enough of her social security check.
The screaming stuff is just him being petulant antagonizing Kim by being attention-starved and bashing Bernie Sanders with the vid title to elicit views. The bigger issue (At least in my opinion) with this guy is that the whole narrative of "control" is becoming more frequent in his videos.
"I want to control women"
"I want a job where I can be in charge and control people"
Not saying he's a serial killer, but discussion like that is veering towards a Jeffery Dammer-esque end. I don't recomend watching it, but his uploads are starting to feel like the Björk stalker's video diaries.