Turn off Gmail app unified inbox

I don't, nor did I ever want my work and personal emails comingled in one unified display on my screen. I was perfectly happy carving out the extra milisecond it takes to tap one or the other. Google (thank you very much) has decided I don't know what's best for me and combined both accounts in a beautiful Technicolor "unified" (ahhhhh......) inbox.

How do I break the ****** thing and go back to the way *I* like it?

Thanks

PS....I realize it's a Google issue not an Apple issue but trying to even locate a Reliant Google forum, let alone successfully post something and get an actual reply is like yelling questions down the drinking well and waiting for answers to echo back up.