I imagine the problem over in America is, where do you go to have a chance to make a difference, if not to one of the twin monolithic corruptions? The system is really a faulty one. I remember watching the psychologist Jonathon Haidt somewhere saying that in politics, a one party system is the worst, obviously - but the next worst? A two party system. But what chance is there of that ever changing in America? And what would be the effect of that change, if a third party grew strong enough?
Like most Americans, I grew up being told to "vote for the lesser of two evils." It doesn't matter if you're conservative or progressive, you vote for the lesser evil, because the other side are a bunch of red commies who are going to turn everyone gay or trans, or they're theocratic fascists who are going to force everyone to carry rape-babies to term.
My parents were counter-cultural types/hippies, so for me it was always "vote Blue no matter who." But I have since gotten off that track, and finally voted third party for the first time in 2016.
But I have since come to think that, in the long run, this approach actually perpetuates the problem and just reifies the two-party system. If you vote for one party or candidate just because the other guy is worse, you are essentially telling your choice that he/she/they only have to be slightly better than the other guy.
(And now we know that the Democrats are actually financially supporting the wackier MAGA Republican candidates, because they are (in theory) easier to defeat in the general. The so-called "pied piper" strategy, which of course helped bring us The Donald).
So I think the only way it will change is if enough people say, "enough is enough" and stop voting for the Dem or Rep. In theory, it could lead to either the birth of new parties that have more than a snowball's chance in hell, and/or reformation of the parties so that they offer better candidates, and/or don't sabotage any candidate that doesn't adhere to the party line.
On the other hand, I think the problem is deeper than any politician, any party, or really any political system. People focus on "capitalism vs. socialism," when both are corruptible. Or people endlessly squabble about traditional vs progressive values, when 90% of people agree on a lot of basic things...and all of the wedge issues are framed to highlight and increase division among the populace (e.g. "You're transphobic if you won't date trans people" or "no abortions, even if you're raped or going to die").
I mean, Noam Chomsky have written extensively about this: how a government propagandizes through dividing the people, so that they think the problem is the other half of the citizenry, rather than the psychopathic corporate oligarchs that
both Republicans and Democrats ultimately serve.