Not specifically environmentalism as a whole but taking too much care, enacting those bad government regulations which hurt businesses, that type of thing. I suppose it's because my parents had money issues so they adopted certain environmentalist stances because they were cheap. Don't use too much of things because they cost money but that doesn't sound great or make you feel good so they say oh for the environment, don't use too much for the environment (but they'd burn down 10 acres of rain forest in a heartbeat to save $5).
It was a personal responsibility issue and good Christians™ had a responsibility to be stewards BUT also because of the Genesis "dominion" clause it means we have a right and almost a duty to exploit nature, animals, etc as god has given them to us for our use and thus using them is not defiling them and this world is disposable anyways as god is going to rapture the faithful and destroy it any day now™ so it's fine to trash it a bit because we'll be moving onto some place better. So it was kind of mixed messaging but it came down to the EPA was bad, government was bad, man was given charge of this for a reason, yes some people were bad and irresponsible and good Christians™ had a duty to give at least a moment's thought about the more egregious environmental crimes but could do most of them anyways especially if they saved money.
That dominion clause does a lot of heavy lifting for a lot of garbage opinions but it's a pretty strong clause so I wouldn't say they're stretching it on a textual basis just that the whole thing is way past its best by date and should have been discarded oh many centuries ago.
Immediately the moment someone fires a gun back at and kills one of these feds. They'll say that they caused the death and are putting other lives at risk and threaten them heavy-handedly and they'll all fold like cards or be targeted by other elements of the state. Some will obviously fold far before that.