So I sometimes see the argument that humans are part of nature so anything we do is inherently natural when someone's arguing that you should be able to do whatever you want and it's all equivalent as long as it makes you happy. Like clearcutting forests and building walmarts or storing leaking barrels of chemical waste on your land is a human instinct and we're helpless to do otherwise.
I'm not saying that's what you believe, but I think this might be a chance for me to understand this worldview better, and maybe get better at talking to those folks.
To me, the fact that humans are part of nature doesn't seem like a gotcha or an out. I think it's a kind of pointless distinction. We're part of nature, yes, but that doesn't mean that producing Per- and Polyfluorinated Substances is natural, and even if you can slap the label 'natural' on it, that still doesn't mean it's a good idea.
We have a capability for reason and an ability to predict outcomes based on past evidence, which reaches way further out than those of other species. Environmentalists have gotten it wrong plenty of times before, but arguing that their efforts are equivalent to drilling for oil in a coral reef because they're both human behaviors seems disingenuous to me.
Most of the time, what ecologists want is for society to stop changing the habitats that are already there. You say "they’re imposing their own vision of what they believe is natural" but I find it really hard to believe you think there's no way to know if keeping a native forest is more 'natural' than building a shopping mall.
On top of that, most of what we're doing as a species is incredibly new and we're changing so much at once, everywhere. We're completely erasing some habitats, rerouting rivers, introducing entirely new materials/chemicals, changing the weather - when beavers change their habitats, it's still a fairly small local change, and the rest of the biosphere has had thousands of years to adapt and even use it, there are lots of other species ready to move into that changed environment. Maybe someday all the remaining species will be adapted to living in the margins around humanity. But we're going to lose a ton of species (and likely a lot of humans to starvation) on the way there.
So I guess I have two questions: Do you believe other species (anything, plant, animals, insect etc) have any intrinsic value? Do other humans have intrinsic value?
If humans have intrinsic value and nonhumans don't, what's the difference?