That is what Quebec did by eliminating the financing of political parties by individuals and instead establishing public funding, based on vote share, support, and other indicators.
Democracy does not exist in a vacuum. As a rule, the less fortunate groups are also the ones that have fewest resources to share their opinions, to convey them, especially considering a few elements that cannot be controlled. It was mentioned earlier that people think they are voting in a presidential system and for a president. That is what most people believe. Election campaigns focus almost entirely on party leaders and little on local issues, except when there is a contradiction between a candidate and the leader shown on national television.