About machine learning

It has recently, in so many places, been suggested that "AI" poses the single largest threat to humanity. To me, this claim is just uninformed and rediculus. Some arguments against:

1. It has been stated that we will not be able to predict the evolution of AI. And it will grow in intellegence exponentially and BAM out-smart and kill us all. But looking at history this kind of prediction has been made lots of times befor with different technical advancememts. To error. I see no reason to beleive this piece of tech will be any more disruptive in that sense.

2. AI is, also amongst highly educated people, vastly miss-understood. In its current incarnation, it is a set of tools to solve detailed technical problems. No where is there any will or intention. AI people still say (and so do I)they do not even understand will.

3. They keep saying we will have an escalation of ai evolving it self away from us slow biologically evolved beings. And finally erasing us. But if an ai is intelligent enough, and the above is a problem, why would it want to have it self superseded by a smarter ai? Won't that feel like for us and the level 1 ai?