Good job on trying the translation (was it machine translation?) but for those who still find it al ittle confusing, basically I believe he's saying something like
There are such wonderful parents in the United States. Why is that we, the generation of the 1980s, have become such a problem?
When we were kids the Famicom (NES) started being sold. As such, kids would spend a long time concentrating on doing one thing in a room. Before the Famicom was sold, kids would also read manga. However, manga can be read even outside. Kids would also get together with their friends and exchange manga.
I think the release of videos and DVDs, and the Internet permeating into our lives, is steadily creating an environment that's conducive for just sitting in a room for longer and longer times.*
In a sense, hikikomori are just too accomodated to that environment.
*yes, it's a weird sentence.
To which I say:
There is that phenomenon and tendency all over the world. Japan's not the only place which has gotten a huge influx of games and technology (though it's got one of the highest). However, I think the reason why this hikikomori phenomenon is somewhat unique to Japan is because of the attitude of the parents and society - correct me if I'm wrong, but parents seem to think it's better to just keep their hikikomori kid at home and just not tell anyone about it, rather than give them a good talking to. A lot of the time it seems like they hardly even talk to their kid anyway - we have that happening in Singapore too, both parents work and can't really look after their kid...