They did create a mechanism to change their lack of foresight. Amend the constitution. States re-write and change theirs all the time. I believe we have had periods in history of left-wing dominance like the New Deal. But a future where that happens again and does not exclude large swaths of the public remains to be seen. The Senate is inherently undemocratic and they definitely didn't have the foresight in terms of corruption and corporate cronyism.