Yes, and tomatoes are "actually" fruits, and peanuts are "really" legumes and almond butter is "not really butter."

"Milk" is a fine term for any opaque liquid, white-ish in color. Especially when it substitutes well for cow's milk.

Coconut milk, rice milk, almond milk, oat milk, and soy milk are well established at this point.

What about coconut milk? That has been called milk for more than a century. Should we start calling it coconut broth instead?

Restricting the use of the word milk to mammal products is silly imo. From a consumer standpoint it makes sense to call milk alternatives <substitute> milk (e.g., soy milk, oat milk, etc.) to make it clear to the consumer that they can use it as an alternative to regular cow milk.

Like peanut butter isn't butter. Yet I don't need to hear people complain about it whenever nut butter is brought up.

Gatekeeping nouns has been a hiding to nothing since language began.

What’s next, telling us we can’t milk chocolate?

Milk of magnesia? Almond milk? Coconut milk? They don’t have nipples, Greg, but I can get milk from them.

Everybody knows that Oatly doesn’t come out of a tit. Nobody is being misled.