Me A Tree?

If we are truly evolving, then we humans are the most evolved in creation, as far as we know on earth.  Most of the DNA in everything alive is the same.  We are just a bit different or more evolved.  So even our image, the way we look, will evolve if we don't destroy ourselves.  So if all of nature is part of our past, why do we treat it as totally other and destroy it?  Animals, less evolved than humans, do not destroy so wantonly.  So why do we?  Why not focus on connections rather than differences.  Not only treat the tree better, but also the poor, the disfigured, the unbalanced, the disabled.  They are all us, but just look a bit different.  Probably someone looks down on me, or you, dismisses us as "less than" which allows them to do thus and so to feather their nest or go on living without concern for us.  Tomorrow I will turn 75 years old.  I hope I am not too dismissed or looked down on or ignored, being old and coming undone.  We will see.