Will politics always be corrupted by donors and money in general?

The Democratic and Republican parties are both cemented by ideologies of their donors benefits and very much their own world ideology. It seems as if the democrats ambitions are pursued more vigorously compared to the GOP in our government though, even though both parties have a sort of uniparty understanding when it comes to globalism.

Even if new parties are legitimately brought to national status, will they in turn be polluted by money and corruption? It seems as if this is as old as time.

What can the people do to legitimately get past the globalists endeavors and obstructions being seen today?