He completely fails to grasp that the hardware aspect of it all is important to many gamers, and especially the PC variety.
I doubt he realizes that computers and consoles alike actually aren't made from little pink magic bunnies held together with some gaffa between two sheets of cellofan.

Pink bunnies? Don't be ridiculous. Everyone knows they're powered by magical fairies.

Shut up, it's made by Unicorns.

I remember the same bullshit said when the then new games for mobile phones were becoming the new hottest thing. Then there were again some .....people saying this thing. That people will just abandon all other platforms and play games on mobile phones and on their new interactive TVs,
muppets.

Anyone remember the Japanese MSX computers? Basically they were manufactured by companies like Spectravideo, Toshiba and so on, but were all basically the same underneath. The format never really took off against more entrenched dedicated systems.

Not depending on platform:
wasn't that an argument coming from Microsoft trying to support the original XBox release? Claiming that it's so close to a PC that a port to the other platform would be a breeze? Yet platform X only games are more common then ever... I don't see that coming, not with current company strategies and even less with the ongoing "fighting piracy" measures.
It could be possible yes. However, you had to simplify the code a lot to fit in such a frame, that different platforms pick it up and "expand" it to their capabilities. As long as a browser isn't capable to perform a new game that way - not coming.
PC-market dying:
C'mon guys - we've seen it before. I remember a time where we had system-wars between different homecomputer-systems, mainly because consoles where that non-existent. It was always a pendulum swinging back and forth.
Right now PC owners are more on the receiving end but still.... can anyone claim there's not enough new and interesting stuff coming his way, so he's considering buying a console? I see many developers focusing on consoles first yes, but really dying? We're far from it.
The same developers considering the PC market dead now, will stand in front of you cheerfully claiming how important you are to them tomorrow. Nothing new.

Hey! They do that every day since I have them trapped in my basement.
Wait, I shouldn't actually tell you that...

The whole problem with the PC market now is the prices. While it takes close to a thousand dollars for a low-mid range gaming rig, and well over 1000 dollars for a mid-top range system, its only 250-400 bucks for a gaming console.
Second problem is that you spend all this money on a gaming PC rig..it will be outdated in a year or so (Requiring more money dumped onto it in the form of Card Upgrades/Memory Upgrade etc) where as consoles stay the same hardware wise (AKA do not need upgrading) until the next iteration of the console comes out.

Yes and no. Consoles always had that price advantage. But you never could do much more with them or at least, a lot less then with a PC.
And let's not forget about the PC's advantages. Playing Dragon Age, Oblivion or Fallout 3 on a console can never be that good as on a PC - you simply lack the mods.
Then there's backward compatibility. About every game sold here on GOG.... even with re-release of old 16bit console classics now, you'll never have that back catalog on a console.
While moving I recently dusted of my old Dreamcast and hooked it up. Guess what? Of course all batteries on my memory cards where dead. No saving - happy gaming. It quickly vanished back into that box again and the next 3 hours I had fun tinkering around with some Morrowind-mods.
In short: what you gain on price for a console, you loose on flexibility. For a lot of gamers this may be a budget decision. But there will always be a market for the gamers who cherish that flexibility and developers willing to produce for that segment.

I don't think this is true. This is the kind of thing you hear from PC maniacs that spend too much on gaming. You don't have to be maxing everything out. Well, some people do, but that's not how it has to be.