Which, if you think about it, means that the local community is overpaying for their cars, and this money funds the dealers. We're generally ok with middlemen taking a cut if they add value, but I don't know anyone who thinks car salesmen add any value whatsoever, they're just an annoying hindrance between you and the car you already researched and wanted.
If everyone was super happy about car dealers, allowing some manufacturers to skip the dealerships wouldn't be an issue, because people would still use the dealers for the value they add.
But people aren't, which is why only the dealers themselves, and the politicians they've bought are fighting to keep them around. Everyone else just wants them gone.