Re: 200% trust in congress
Setting SLS entirely aside for a moment, despite the impressive progress SpaceX has made, Super Heavy and Starship remain untested and unproven vehicles. The program has been beset with issues (because they're ambitious and rocketry isn't easy) and the SS test articles are still basically just big tubes with some propellant tanks inside. SH is probably pretty close to functional since it's just the booster but even if SpaceX manages to conduct a successful first orbital flight test, whenever that might occur, there's still a huge amount of work to be done to turn SS into a usable launch vehicle.
It's all well and good to say that SH+SS is going to make various other launchers obsolete, but there's currently no timeframe for that to occur.
Biting the hand that feeds IT
