>The majority of NASA's budget today is being wasted today on the SLS, a launch system that will be at cost at least 10x more per pound than commercial systems.
It's the most powerful rocket ever... There are no comparable commercial systems. It has a 2.4x heavier payload than the Falcon Heavy, which also doesn't exist yet. You can't just compare the cost per pound, and even then your numbers are wrong- at 500 M$/130 MT the SLS is only 30% more expensive than the Falcon Heavy. Even if the SLS wasn't 2.4x bigger, 30% is worth it for the institutional ability to make those rockets. It's NASA, they should have the technical ability to get to space.
>Most of NASA's budget since Apollo was blown the Shuttle, the most expensive launch system in history, cost over $1.5B a launch for a cargo capacity similar to a Falcon 9 and couldn't get out of LEO.
Yes, the shuttle sucks, because it was a military project. It has wings because the military wanted it to. Almost every poor design choice was demanded by the military. The dream of the shuttle was relegated to work-making due to national "security" concerns. The military wanted it to land anywhere in the world, so it got wings, etc.
>The rest was blown on the ISS so we could run questionable science experiments at a cost of only $200B+.
???? We have people in space and international cooperation on an unprecedented scale. Are antarctic bases "questionable"?
>I want to see a NASA devoted to robotic probes and it's manned missions restricted entirely to commercial launch systems. If they want 200,000 lb lift capacity, bid it out and let commercial providers step up with affordable solutions that aren't required to be built in every state and congressional district.
There is a single company that can do it cheaper than NASA, and that's spaceX. Government contracting leads to uncontrollable cost inflation 99% of the time. If you disconnect the managers from the product, bad things happen. It's only when you have companies that are actually dedicated to affordable spaceflight that better things happen. SpaceX is a glowing gem, not the norm. The norm is extreme waste and incompetence. NASA is more competent than any of its contractors with the sole, debatable exception of SpaceX.
You are arguing for something on principles against and enormous mountain of evidence.