This is like saying food makes us fat, ban food! Nonsensical
If we're to use logic, how about use it properly? For one, food is essential for our survival. Powerpoint is not. So while banning food would be nonsensical (for that reason), banning Powerpoint doesn't have the same issue. A better example would be: "French fries make us fat, ban french fries". Not as nonsensical. French fries are not essential to eat in the first place, and cause harm according to most studies.
The analogy isn't based on 'essentiality'. The point that was made, was correct - Banning something does not solve the original problem. Sorry for spelling it out. I didn't realize comprehending it would be so troublesome for some.
There is no such thing as a perfect analogy. If an analogy can't break down, it wouldn't be called an analogy. You would just say the thing that was to be said.