Are men in decline? Actually, it's the wrong question. My view is that he's taking a variety of factors affecting society as a whole and applying them simply to guys.
I think he has some valid points; the games industry is rapidly becoming something of a bugbear of mine. Essentially, larger games companies are churning out high detail rat-pulling-a-lever games, games that can be played an awful lot without deeper thought over strategy, design, or other useful factors. The internet can be a useful way of stimulating debate, improving knowledge and disseminating information, but that requires those of us who want to use it that way to go on a real offensive against the dumb-ternets. Gaming is hitting women as well as men, mind, though men seem to by and large be worse hit.
As for pornography, I think that we have to take it more seriously as an issue. As an example, requiring genuine proof of age (not just a disclaimer) to access over-18 sites and cracking down on the illegal end of the market. I think that like any other industry, the porn industry has to accept that given the power it not has, that comes with responsibilities. I'm not sure I'd say that it's causing a "decline of men", though - it is making it more difficult for some people, particularly in forming relationships, but moralising types are often overstating the issue.
I think the expectation of results is a Euro-American societal issue, not a gender one. It's also the fact that we keep trying to shoe-horn people into the sorts of jobs they're just not suited for, the loss of manufacturing and manual work in the UK for example has meant that people who aren't fitted to University are usually either flipping Burgers and getting paid just enough to survive or are on benefits and NOT getting paid enough to survive. There are major failings in our education system; again, boys are more affected than girls due perhaps to societal expectations but the problem is in the education system rather than anything specifically to do with gender.
As to the latter question... I wholly agree. Honesty, chivalry, integrity - where are they now? This is a problem so compounded that girls are part of it too, there simply isn't an expectation that guys WON'T be douchebags in a lot of places. Materialism and a ratrace anarchocapitalist (I overstate it, but not as much as I'd like to be doing) societal model is killing us, purely and simply.
