That video is the perfect example of what happens when you put a leash on a grown cat for the first time in it's life and drag it into a strange environment. The nicest cat on the planet turns into a blade wielding dervish when it's terrified.
And that dumb bitch trying to put the box over it just made shit worse
Cat goes like that there's only one solution, you hoist it up by the leash with one hand, get a good scruff on it with the other, then deposit it whatever you want it until it chills out. The collar tightening around his throat is what's sending him into a worse panick.