> See that's the part I really struggle with. Cratering foreign aid has an obvious ideological component, but who hates hiking trails? Like I'm sure there are a few people who hate the outdoors and a handful of oligarchs who want to privatize everything, but where's the constituency for it?

They don't care about constituency. They could pass these cuts as part of a deal but choose not to specifically because it wouldn't be popular. They are trying to sell national parks to oligarchs.