We could vote for someone else. We just have to do three very important things:

1. Stop bickering amongst ourselves.
2. Come together under a single unified stratagem even if we don't all agree 100% on it. This can be substituted for coming under a unified banner.
3. Continue pushing after the election has ended instead of the usual "Oop, election done. All good." and then panic four years later.

ALL OF THESE, each individual step, are massive steps to expect and to take. Yet they are what would fix things. The biggest hurdle, in my opinion, is finding leaders people can rally behind. Because make no mistake: Anyone leading this would be in significant danger, and I think most people know that.

The reason you don't see working people truly represented in politics is because whole system was set up by rich people a long time ago and there was a good reason for that - they had the money and time to devote to it. The same is true today. Most working folks simply do not have the time and resources, or will, to find and support the people they want to see in power. Additionally, the modern oligarchs keep most occupied with entertainment and worrying about "the other" folks. As the rich consolidate wealth it becomes even more true. Now we can add espionage into the equation. Russia, China and Iran benefit by pouring money into destabilization tactics through psyops programs designed to destabilize the US. This is accomplished through massive social disinformation, like we often see here and on Fox.

Unless you mean "because they emigrate", then they're not that smart. By not voting, they acquiesce to whatever becomes policy. They silence their own voice. Pretty damn stupid imo