Actually bro. The same fear you have about IA is also the same fear that normally greets any emerging technology; which is the fear of uncertainty. For example, before the advent of aeroplane, how will you explain to our forefathers that a heavier-than-air metal would fly? But we have seen the practicalities in this era.
More so, the merger being talked about would not override the part of the human consciousness; just to argument the limitations inherent in our biological bodies. In other words, we would still maintain our humanity and control. Doesn't this sound like a good idea bro?
Who knows, you could decide to merge too :D
Thanks for coming around buddy