“The problem isn’t the principled congressmen, it is the unprincipled ones.”
Principled congress-critters who don’t accomplish anything are like tits on a hog.
"It is not the critic who counts; not the man who points out how the strong man stumbles, or where the doer of deeds could have done them better. The credit belongs to the man who is actually in the arena, whose face is marred by dust and sweat and blood; who strives valiantly; who errs, who comes short again and again, because there is no effort without error and shortcoming; but who does actually strive to do the deeds; who knows great enthusiasms, the great devotions; who spends himself in a worthy cause; who at the best knows in the end the triumph of high achievement, and who at the worst, if he fails, at least fails while daring greatly, so that his place shall never be with those cold and timid souls who neither know victory nor defeat."
Theodore Roosevelt
Just because you appear to be unaware of what has been accomplished doesn’t mean that nothing has been accomplished. Every one of the 535 members of Congress has an actual voting record and more than any other sub-group in Congress the Freedom Caucus has the most members with a perfect 100% conservative voting record according to the conservative organizations that track how members vote on the key issues that conservatives care about.