Human nature changes constantly, because our nature is determined by culture. Culture is the difference between a society built on hate and fear and one built on mutual love and trust; human societies have taken these forms and many others. And yes, "technology" is part and parcel of culture and our nature. The people of today are hyper aware, part of and responsible to a global culture. They are vastly different from the serf of a thousand years ago or the hunter of ten thousand.
You're just making another claim, not offering any evidence. EDIT: At best you're making the admission that our "nature" is static, but our tech and resulting society change. It's not a fundamental change, and is subject to reversion in the absence of the tech, or in extreme stress.
I don't think that I'm being difficult; you're the only one to struggle with the concept of "Human nature", and only when you were unable to do anything to support your claim.