Without people like you claiming our two corrupted, coconspiring parties shouting that they're the only choices, we could have a real choice.
Surely you see how it's in the best interests of the DNC and the RNC to declare themselves the only rational options, but still, sometimes they lose. AOC is a good example of this in a primary, they still despise her for "stealing" that neoliberals seat, and Sanders is another as an independent.
Republicans/Democrats are only as inevitable as we believe they are, and some people under their thumb sure to enjoy trapping others under said thumb. With either of those parties in charge, we are not free. This is theater, a game they cooperatively play against us while taking the same bribes from the same oligarchs and driving social wedges between us to keep us too hateful unite against the economy they both protect from us. The supposed democratic equivalent of "you can have any color you want as long as it's black."
Things will continue to decline until their political duopoly ends, or we collapse by their hands which is looking sooner rather than later. We sink a little slower under Democrats because pointless ribbons don't destroy the social fabric as scapegoating does, but we're still sinking under either.