SLS vs. Starship
SLS is the last major gasp of a military industrial complex that has completely taken over congress. The fact that we're paying $146M for each engine on the SLS (takes 4 to launch) and SpaceX is promising an entire launch for Starship at While I don't agree with all thing Musk, he's revolutionized the global spacelaunch industry by reducing costs 10x.  Now, totally dominant in an industry, he's making that rocket obsolete in favor of a better one (Spaceship).