How to practically oppose corporatism?

Banks, insurance companies and other huge corporations often use the legislation to protect themselves from fair competition against small and medium businesses at the expense of the general public. Most regulations are lobbied and legislators are promoted by them.

The only way to change it is by creation of an alternative funding and promotion mechanisms where the middle class would be able to fund their representatives and outcompete the big sharks.

For that there are two goals to be reached. First, we need some kind of public funding platform, where the people would be able to raise enough funds to support their candidates and ideas. Second, we need an unregulated advertisement platform.

The corporations understood this earlier and better than than general public. They already are in partial control over main advertisement platforms, such as Google and Facebook, and shutting down every unpleasing funding initiative on platforms such as Gofundme and Patreon.

They also have almost total control over education, which have already led many if not most of the young people to believe in self-contradicting and not supported by the past experience socialists and communists ideas of the far left. This is the path to social and economic suicide.

If you have any ideas of a better, more reliable and longstading alternative solutions for any, if not both problems, please share it in the comments.