The debt ceiling was raised. It wasn’t the perfect plan, but it was a compromise that got the job done. The credit rating drop wasn’t because of the lack of a plan to raise the debt ceiling, it was because of worries over political instability and whetehr or not the two sides would be able to work with one another in the future.
Congressional approval ratings are ALWAYS low, this is not new. People hate congress, but they love their individual member. That’s why we have a 90+% return rate on reelections.