Surely the underlying problem is that the Constitution contains an implicit death-spiral?
The nature of the Senate means that there's a built-in-bias towards voters from sparsely-populated rural, predominantly white, states. It seems as if this is only going to get worse, as population trends continue (I read that at the time the country was founded the largest state had about 10 times the population of the smallest, and now that's closer to a factor of 100).
You can then add in the filibuster (which, as I understand it, was created entirely by accident in a botched reform of the house rules) to make it worse.
And then there's the Electoral College (which, as it partly depends on the Senate for its numerical basis, shares that body's biases - in fact it has two flaws, on the one hand erasing any minority group within a state, because of the winner-takes-all way it tends to be applied, and on the other, replicating the bias towards certain states of the Senate).
And then there's the Supreme Court, appointments to which are 'gatekept' by that same skewed senate, and which seems to have decided to become an entirely political body, with no hint of shame about that 'legislating from the bench'. And which in turn then gets to facilitate gerrymandering at the state level.
As long as the skew in the Senate continues to worsen, the whole thing seems like a near-unbreakable self-reinforcing mechanism for sustaining an old-rural-white-guy oligarchy.
I don't see how the future can be anything other than more-and-worse Trumps, unless something drastic is done to break that death-spiral before it's too late (like court packing, or creating new states, or some massive demographic project to move lots of liberal-leaning voters to Texas and 'flip' it)
The idea was to create a bedrock, ....to shift the metaphor, to give the ship of state a keel and a rudder to help the nation survive the vicissitudes, the storms and shoals that would inevitably develop over Time.
