Super appreciate your passionate comment, but my response would be, what's the purpose of chopping down a tree for cardboard, when we have all the raw plastic we could ever need for multiple recycled and sustainable uses. Something that is going to be in the bathroom and potentially exposed to water SHOULD be plastic in my opinion. Recycled plastic isn't always a bad thing, it's durable and water proof. Isn't the point to avoid single use items and waste?

Best part is, us using it in our day to day means it's not ending up in the trash and not causing more trees to be cut down. Let's use what we've got too much of already, instead of making new new new, That's the point of sustainability IMO :D