Uh … gross? That’s a serious amount of fat. I generally avoid putting foodstuff down the drain. And I’ve never been a fan of wet wiped for just this reason. A reintroduction of the bidet is in order.
Surely our waste system can handle it better as trash or, even better, compost. Trash is still problematic, though, since it is mostly stored compressed in heaps, leading to a slow, anaerobic decomposition environment. Waste handlers would do well to build in some kind of processing stage that mixes and mushed and adds some kind of agent to speed decomposition.