Well, besides exclusives, all the other points are not true. 
Ok let me a bit less facetious (the carrot discussion in the other thread placed me in a catch 22 mood):
So, comfort is very much a broad term but you can be as comfortable on a PC as you are on a console. I can play on my PC on the couch or at my desk or whatever. It is my choice.
Portability is easily proveb wrong. My laptop is way more portable than any PS4 or Xbone.
controller is also wrong. I have an Xbox 1 controller for my PC which I use a lot. Especially for platformers and fighting games.
Cost is also not entirely correct. I can build a PS4 level PC for about the same price as I build a PS4 it involves work but I it is possible. If you feel like that is too much, let me tell you the other reason they are not cheaper. When GT5 came out I was going to buy a PS3 just to play it. However my laptop broke down at the same time so I didn’t have money for both. So I bought a semi decent laptop and gamed there. I couldn’t afford to buy a toy when I needed a computer for Uni. So no, consoles are not cheaper. They have very limited functionality and further in their life cycle their cost/performance gets worse and worse and makes them a worse investment than a PC.