"we used to"
No the fuck we didn't. Humans have always been dumb, shortsighted, and curious. The internet just makes it really easy to see the ones that fuck up enough to be entertaining.
People eating less cows would drastically reduce the cow population. I'm sure they would be culled, with entire plants electing to kill the cows rather than sustain them unprofitably.
Considering the professor seems to be lecturing and that dude is writing in a notebook, I have a suspicion that maybe the caption was enhanced for comedic effect.
Yay, more YouTube and Instagram. What we always wanted.
Can't wait to have maybe one day Meta and Alphabet will combine so we can only have one service!
Who gives a fuck?