I think that this topic is quite complex, and generalities are to be done with care. Yes new technologies such as 5G and autonomous cars (electric or not), when doing a comprehensive analysis of those systems, will bring more problems than solutions. But technology has so many other shapes, even in the field of CS. Would working on software to simulate and visualise atmospheric phenomenons be working toward more problems ? Working on optimizing the use of an electric grid ? Even 5G and autonomous cars are not problematic by themselves, its how we plan to make, deploy and use those technologies that will lead to even more troubles. To sum up my view, I think that tech is not the problem, but tech providers and users are.