It is a kind of evolution I guess not a biological in this case. We can coexist perhaps.
There is this whale story someone told me. Somewhere in north pacific ocean fishers were hunting whale babies and thus whales trying to protect their species used to attack back. One day, a single fisher with a small boat encountered a whale around that location. He has nothing to do but pat the whale's head when it approached. From that day on, whales and humans in that region became friends. Now, tourists go to that place to take photos with the baby whales.
So, if you show kindness and do not plant seeds of hatred, aggressive competition you get that same kindness back. If those prospective robots keep the sense that humans and robots are in fact exist for a common goal then it will be ok.
My second point is that intelligence is not the most important thing in evolution or in the universe. Other species still exist today that we may call a bit limited in terms of intelligence. Maybe robots will still want to keep us for some reason as we do certain animals, like pets maybe
My last point is that I personally would not feel sad, if our species goes extinct. After all, pure information or rather abstract formations of knowledge is the thing I value. Humans have the capacity to understand these, but on the other hand we have plenty of areas in which we are very weak. We think that we are way above animals, but in fact we are not.