But I think it's a mistake to believe the ideas he was exposed to as an undergraduate lead to him becoming the unabomber.
In his manifesto he works through a lot of these ideas and shows us the world view he's developed around them, but the impetus for it all -- it seems clear to me -- comes from his inability to come to terms with living in a society.
It causes him great pain and distress and he's been unable to find a way to make it stop. He's finally decided that society needs to go, and violently. And he's come up with a meticulously constructed world view to support this... (1) that this is somehow OK and (2) that it's possible.
While it looks like he clearly used ideas from his Harvard days to create his world view, the motivation existed independent of them. I think he was simply using the materials at hand and would have used other ideas had he not been exposed to the the "Gen Ed" ones... a world view different in details but supporting the same conclusion.
It does seem reasonable to wonder whether severe psychological experiments might have pushed a mind on the edge over a precipice, though.