You aren't comparing like for like, most people who kill animals doesn't perform a ritual, they just kill it.
Also you can't compare a video trying to show something in a positive light "ritual killing" vs a video trying to show something in a negative light. If they showed you a video about a slaughter that went wrong, the animal is crying as the slaughterer ends it, blood everywhere, then people would feel very bad as well. Or if they showed you a slaughterer joking about as he was slaughtering animals, you probably would feel more as well. Those things are the reality of traditional killing, I don't see how it is any better than a machine doing it. The end result is the same.
The main difference is that we no longer need to train a lot of people to be killing machines like we did before.
Those videos turned my stomach, and almost everyone I know who has watched them admits the same. My friends and I all still eat meat, but no question that might change if we had to watch those videos on how our mass produced cheap meat products are made.