I think their argument is more that the agencies aren't allowed to be the ones to say how a law is applied as far as regulations go. If a regulation is vague enough the EPA isn't allowed to clarify anymore, it needs to go to a (more than likely rubber stamp) court where the judges decide, instead of, you know, anyone who would actually have expertise... It's legally "reasonable" but practically insane.

SCOTUS is unchecked by the rest of the federal government. The only thing that would limit their power is a constitutional amendment, which requires 38 states to individually ratify it at the level of their state governments, not their federal congresspeople.

There is literally no way for congress to affect the supreme court once it has 9 justices, or contradict its rulings on laws they call "unconstitutional", short of impeaching supreme court justices or packing the court with more than 9 justices. Once enough of the court is full of fascists or enablers, it's EXTREMELY hard to escape fascism without a constitutional convention.

Is SCOTUS bound by anything?

flipping open my Lockean theory of self-governance

Strictly speaking, the power of government is in its ability to achieve (relatively) peaceful compliance. The SCOTUS decision creates an opportunity for individuals to behave in defiance of the written law with a certain fearlessness. A President can go full Andrew Jackson and tell the judges to enforce that decision, but he's still got to command a bureaucracy full of people who can be swayed in the other direction.

What happens to a regulation that nobody is willing to enforce? What happens to a federal regulation that runs afoul of state law, in a district where municipal/state law enforcement will enthusiastically arrest and local DAs prosecute a federal agent?

I would say that's the real power of the SCOTUS. Opening the legal door for disobedience and negligence at the federal level, while state-level revolt occurs downstream.

In theory that was supposed to be the strength of SCOTUS, that being secure in their employment for life (or until retirement), they had no incentive to judge along party lines for fear of future prospects. However, we've seen that judges can still be both very partisan and entirely unqualified and we can now do nothing to remove them. Turns out bribery and threats still work on them

There's at least a possibility of the executive having enough expertise to regulate reasonably. The courts don't have the resources, but they've grabbed that power to themselves.

don’t let perfect be the enemy of good.

This sentiment is way too rare. Personally I'm a fan of using "don't let perfect be the enemy of good enough"

the nutjobs will never get the freedom they want. they want freedom to step on others and freedom from accountability.

they do not have the same desires as you and i.

Plus the filibuster requires 2/3, not a simple majority to get anything done.

Manchin wasn't even in the Senate yet. Lieberman was an independent that endorsed Romney 3 years later.

There were senators from Louisiana and Missouri in that majority.

Also Franken wasn't seated until like June because of recounts and lawsuits. Ted Kennedy was on deaths door and passed away 2 months later. His replacement was seated a couple months after that and then Scott Brown won in fucking Massachusetts in January.

They ended up with something like 109 working days in which Democrats could override a Republican filibuster. They passed 2 major pieces of legislation. Dodd Frank and the ACA.

Unless you do everything at once with conflicting interests across different parts of "everything" and you get an omnibus bill, which is the only way to actually get anything done in congress nowadays (for some god-forsaken reason)

Let SCOTUS enforce it. Why anyone still listens to that nut job chorus is beyond me.

There was the Voting Rights Act case, Shelby County v. Holder. A case in which SCOTUS struck a provision in the Voting Rights Act as they declared it was unconstitutional. If you can declare a provision unconstitutional, what would stop SCOTUS from declaring an entire law unconstitutional?

We've already seen a SCOTUS decide it can do anything it wants.