The US constitution isn't a holy relic handed down by Zeus; it's an extremely compromised document based on the political needs, concerns, and compromises of 17

The US constitution isn't a holy relic handed down by Zeus; it's an extremely compromised document based on the political needs, concerns, and compromises of 1787, helpfully but inadequately amended over the last 200-some years. The worst parts are the anti-democratic features originally put in place to protect the interests of the sparsely-populated slaver states. Inasmuch as we have a functional government today, it's because the functions we need have been taken up by agencies neither required nor forbidden by the constitution, but generally created by enabling laws for the executive branch. You can't just throw those things away unless you are willing to adopt a completely new constitution written to meet modern needs.