Should political parties be dismantle all together?
Yes because Republicans and Democrats ain't doing their damn jobs. They've gotten greedy, corrupt, and lunatics have taken over. That means both of them. They need to be dissolved, fixed and start over. Trump wants to drain the swamp, he should drain Congress. Every single one. McConnell, Feinstein, Schumer, Pelosi and a few others have been there for 30+ years. Congress should not be a career.
Parties serve lots of important functions. It helps find ans support people who have the values of the party. They support, with expertise and MONEY to help get people with the parties values into office. We have a three party system, if you consider Independents as a party.