It started because of school shootings, ironically enough. If you’re in a lockdown for hours while the cops take their sweet time, (coughUvaldecough), there’s a near 100% chance that at least one of the children in your class is going to need to use the restroom during that time.

Luckily, camp toilets are a thing:

They’re basically a 5 gallon bucket with a snap-on toilet seat lid. You use a trash bag to line it, then sprinkle an alginate powder in, (the same powder used in diapers) and it turns into a gel when it gets wet. This helps avoid the smell and splashing, and a single small sachet of alginate powder is enough for the entire bucket.

As an added bonus, you can use the bucket to store other things that might be needed in a shooting or extended lockdown. Tourniquets, gauze, protein bars, etc… It’s all there in a single grab-and-go location. Lockdown starts, you pull the bucket out of the closet, dump all the supplies out, and set it in the corner for kids to use if they need to pee.

But this very quickly got flipped around, because conservatives didn’t want the left to start using “schools need toilets in the classrooms because school shootings are so frequent” campaigns. So they flipped it around, and said schools were providing litter boxes to furries. There’s also a heavy anti-trans lean on the litter boxes messaging, which just plays into the conservative fear mongering even more.