The part they didn’t consent to was being in pain from overproduction of milk, which is something we imposed on them through selective breeding. If we didn’t do that, they’d just go about their merry ways making enough to feed their calves and stop making milk when they’ve grown enough to feed themselves.
The production of all three involves harm to the animals and is done without their consent.
Automatic milking machines prove otherwise. Cows stand in line to get milked and often have to be skipped because they’ve been milked already
The part they didn’t consent to was being in pain from overproduction of milk, which is something we imposed on them through selective breeding. If we didn’t do that, they’d just go about their merry ways making enough to feed their calves and stop making milk when they’ve grown enough to feed themselves.
They also don’t consent to being artificially inseminated and having their calves taken away from them.