Yes, rice milk is the water from cooking rice, does this upset you for some reason? It’s a lot healthier than dairy and does not upset your stomach like nut milk. Oh, now will you be angry because a nut can’t be milked either? LOL
Not angry.
I think it is wrong and stupid to bastardize the language just to satisfy some business sales job.
Milk is what mammals make from mammary glands. Milk is what mammal mothers make for their babies. Milk is what we drink from our mothers when we are babies. As we get older if we continue to drink milk we drink milk produced by other mammals, usually cows. Milk we do not get from almonds, rice, soy or other plants, no matter what some commercial interest tries to sell us.
For almonds they could actually correctly call it almond juice, for that’s what it is. For rice and soy they should just invent some other name and quit giving it the attribute of “milk” which it is not.