And eventually exporting them or sending them to a boneyard where they end up as bits and pieces of other cars.

The usual boneyard model these days immediately cut off the high-value parts for themselves (cat converters, rims, batteries or tires if they're newer, maybe body parts), drop it on cinder blocks for 3 months for U-pullers to take off other parts, and then crush them.

(This is why I buy mass-model Toyotas, easy to fix, always spare parts, always a buyer)