> party would be successful in the U.S
No party besides the democrat or republican party will be successful in the US because first past the post is a fundamentally broken model of democracy that always reduces into a base case of two parties. Combine that with the power of money in politics and gerrymandering and there is no way to fathom competition at the federal level.
> is appalling and disheartening.
For the most part American voters have demonstrated a lack of care for the aftermath of the financial crisis, given how they brought back a Republican majority in congress only four years after realizing how well that worked in the decade prior.
Which is mostly disingenuous, given how politicians in America are all consistently cut from the same cloth and serving the same (private) interests.
> are inheriting the current system
You actually aren't inheriting anything. Youth unemployment at an all time high, average income of bachelors graduates being around 26k a year, the lowest rates of property ownership in half a century, wealth concentration as high as the roaring twenties. The aging with power and money are holding onto it to their grave, and then only their blessed decedents will inherit the means of production. There is no mechanism to disseminate concentrated wealth back into the masses, especially the youth, anymore. Economics used to promote that, and policy used to enable that, but as we approach post-scarcity both have been sabotaged by generations that want to maintain control and power perpetually.