To the OP - what if someone has zero interest in building a PC, managing settings, configuring stuff, updating drivers, and all of the additional work that goes into owning and using a PC for games? Can they still be a "hardcore gamer?"
I plan on building my first gaming PC this year, because I decided all of that stuff actually sounds pretty awesome. I have always enjoyed hobbies where you get to build and customize something, and where tweaking, optimizing, and regular maintenance are part of the experience. The fact that I can get better performance from all of that (relative to a console) is pretty awesome. The fact that there are fewer and fewer console exclusives (and that trend will likely continue) and that games are often cheaper on PC will probably mean that more of my gaming gets done on a PC once I have one.
But I totally get people that don't want to deal with that stuff and that don't understand how anyone could enjoy it. And a PC can never 100% replace a console experience (and vice versa).