Yes, one of the biggest problems is extreme wealth concentration, combined with private cradle-to-grave funding of politicians, combined a with plurality/first-

Yes, one of the biggest problems is extreme wealth concentration, combined with private cradle-to-grave funding of politicians, combined a with plurality/first-past-the-post voting system. When 1% of the country can determine who gets to run for, and stay in, office, and which political parties are viable and which are marginalized, then such a Democracy is flawed at best and doesn't always represent the will or interests of most people.