Because our government was fully captured by the wealth class half a century ago when their preferred party(R) converted their formerly pro-labor opposition party(D) to their economic cause with the promise of larger bribes, leaving us no vote on economic policy, only social issues that are largely informed and exacerbated by economic policy Neoliberals and Republicans get the same marching orders for.
It's wishful self-delusion to believe this nation hasn't collapsed into openly corrupt plutocracy. Our nation as outlined in the Constitution is captured and over. We'll limp along for a time, playing pretend we're still a democratic republic rather than an oligarch piggy bank, until we collapse. Because Americans are too A) soft, B) addicted to their subsistence opiates (social media, fast food, literal opiates, etc) to risk disruption, and C) thoroughly propagandized to defer to their oppressors through all mjaor media, that they own, and even education that preaches their DIVINE FREE MARKET CAPITALISM doctrine from Kindergarten through colleges of economics to even consider the difficult but necessary step of revolution.
To be clear, not revolting isn't sparing pain, only prolonging it until the crooked system collapses under the weight of its own corruption, at which point the people will still need to rebuild. Just as with climate change and everything else, we kick the can down the road and hope we'll be dead before the bill comes due. How American of us.