They'd originally existed because manufacturers didn't have enough resources to sell directly to customers, and they'd probably still exist (in a smaller capacity) today even if manufacturers could sell direct. Because there still are some manufacturers that sell low enough volumes in the US that it would probably still financially make sense for them to lean on a dealer network.
But for sure, Ford, GM, Toyota, Stellantis, etc would probably love to sell direct.
But for sure, Ford, GM, Toyota, Stellantis, etc would probably love to sell direct.