They may have a valid point since only money talks in government these days.
Every expansion of that mandate seriously perverts the whole institution, and allows them to justify basically any course of action through a vague mental framework, by means of a network of suggestible and mentally soft bureaucrats who want more than anything to keep their job, no matter how immoral the duties of their office are or have become.
For the last seventy years or, western democracies have moved power away from traditional branches of government and into the hands of agencies, because political movements were fed up with the slowness, dark compromises and voter-oriented showmanship of traditional democratic machinery.
And indeed those systems really are slow, messy and give incomplete results. So when agencies do behave badly, it is not very helpful (or even true) to say that the tedious checks-and-balance systems that the agencies exist to work around are an effective recourse.
You have some incredible wildlife and cultural history in America, so I can understand trying to protect it.