Echo Show Cameras to be used like Ring Cameras

I want to use my Echo Show 15 cameras as additional surveillance cameras in the Ring System. This should be a no-brainer feature considering Echo Show devices are wildly sold. What is especially annoying, the Ring app even lists the Echo Show and tells me how to set it up for this. Only it is not an available feature. It is silly having to place an additional camera next to an Echo Show to get the same video/picture surveillance that the Echo Show could provide directly.