By believing fearmongering and being manipulated into trading liberty for "security."
By electing phonies who pay lip service to the constitution but keep us on the same old path towards socialism/authoritarianism.
By not realizing that both parties have been pretty much taken over by globalists who are beholden to other interests, despite their great sounding words and promises to limit the size of government, etc. And because of that lack of realization of what has been happening - being manipulated into "holding one's nose" and constantly voting for the "lesser of two evils" - which still brings evil.
By not caring enough about character, genuineness and principles, which leads to putting crooks in power and the destruction of our freedom. By not caring much about corruption. Or worse - ridiculing and trying to shame people who dare to question government corruption or expose cover-ups, by calling them unpatriotic or "crazy." Whether the scoffers do that out of sincere, staunch partisanship to a leader or party, or whether it's for some other, less honest reason... the end result is that people in power get away with all sorts of things, because we let them.
So to sum it up, it's because we don't take the advice of the founders to be vigilant, informed, and to know our rights and not be too trusting that the government always has our best interests at heart. And it's because we don't always learn from history, so history tends to repeat itself.
The good news is, there are people who truly care about protecting freedom and preserving our God-given rights, and championing justice, even when what they're saying is unpopular. So there is hope, but it's better if we can solve these issues while we still have freedom and some honest people in power. If not, it can get to the point of no return.
I didn't mean to give a sermon here ;-) but sometimes when I write, my hands just keep going. So there's my answer. *steps down from the soap box*
Your Rant is exactly what is on my mind these days. Reply anytime, you are right on the money.
The thoughts of American leaders in the early part of the last century could never have imagined a Nation filled with people who don't even care to think things through. Life is all about themselves and they are easy to control.
Sorry to see America come to an end, but it has. Stick a chip in him Jim, he's dead.