Your confusing the Constitution with the government it creates. They are not one and the same. The Constitution IS your friend. It is actually an anti-government document that creates and at the same time severely limits the powers of the federal government. The U.S. Constitution is based on the principles spelled out in the Declaration of Independence that our rights are derived from God not from man or his government. This is one of the key distinctions between the Constitution and the government it created. Government never recognizes your God-given rights and liberties unless it's forced to and the Constitution forces it to do just that. The history of America is a story of how long and hard government has worked to take away your liberties and amass more and more power to itself. Government is always a taker. It will try to take as much power and money from you as it can.
The Constitution is a recognition of the need for a limited federal government to unify and protect America mainly from foreign governments. But as I said, your protector is very capable of being you oppressor. The Constitution is the only legal bulwark in America between your freedoms and a federal government that would love to gain more power by abridging your freedoms.
No one defends the Constitution any more than me.
But, it is not a death pact.
And, there is basic right and wrong, based in the laws of nature and of nature’s God, that precede and supersede all human constitutions and laws.
This understanding was the basis for this republic.