I'm a designer, too, and there are those of us who believe that not only is design automation possible, it is likely, and we will be much the better as contributors and society for it.

Google's Mathias Duarte advocated as such at UXPA last year in his keynote.

Think about it this way - design trends are just manifestations of a particular temporal affinity towards one aesthetic or another. Machines can measure this and expound as well as react to it at a much faster scale than the human mind can.

Design isn't art. There are way too many designers out there who think it is. Art is art. Design is about solving problems. You can and totally should automate as much of that as possible.