Well if you just look at the human race in general I cannot imagine a sentient race wanting to make contact. I mean really we cannot get along with each other. We try, but there are a lot of paranoid people. I guarantee there are people somewhere who still think the world is flat
. We have people doing all sorts of attrocities in the name of their interpretation of God. If a little green man suddenly appeared on our door step, do you know what kind of religious hysteria that would create?
While I think the human race is growing and many of us are accepting of many things, I still think the majority of people cannot comprehend the truely alien let alone the differences in the human race. Its a rocky road and I don't think we will see peace and acceptance of all the differences in humans and our cultures in my lifetime. Until we can face our own demons I really don't think an actual peaceful alien race would even care to bother trying to make contact.
We have a hard enough time trying to wrap our heads around our own lives and deaths let alone throwing another equation like an E.T. Many people would litterally pop a gasket because this would make them question everything. I also think deep down inside even the most idealistic SETI researcher knows that we are just not ready, but maybe just maybe if contact was made it could be the catalyst for change. Somehow I doubt it though, there are just to many narrow minded kooks
with to many people following every word they say.