I don’t know if all men are like this, but there is shopping and there is shopping. For instance:
If I go to the auto parts store, I don’t have to pick up, look at and handle every fuel pump they have. But my wife does have to pick up, handle, and look at every purse in the store when she goes shopping.
She goes shopping to look, I shop to get in and out as quickly as possible.
It’s not comparable. If your wife was buying a fuel pump, I expect she would just pick up the one suitable for her car, too ... perhaps after calling ahead to make sure they have it in stock. (I always call ahead if it’s important to get a specific item - my husband never does.)
But more to the point, that’s you or her, or it’s me or my daughter or son. Generalizing it to apply to whole groups of people is tendentious, intended to “prove” a prejudice, not make a useful observation.