Both sides of the coin have their distinct advantages and disadvantages, and the amount of bullcrap that mounted up over all the completely failed promises of the "next generation" of consoles actually lead me BACK to PC gaming.
Honestly, the only place you typically find the attitudes you describe are in already toxic communities, so I find it hard to only single out PC gamers for being toxic, when the entire tone of said communities are already based around incredibly cynical and toxic attitudes. (I mean RPS, Youtube communities, reddit, kotaku, neogaf, etc, etc, etc.)
I also tend to think that the whole PC MASTER RACE thing, aside from just being something that Yahtzee inadvertently set off for a one off humorous aside, grew as a response to incredibly obnoxious console dudebro gamers and the incredibly immature 12 year olds that mainly constitute that community as well.
To be frank, if we went back to just worrying about what WE think is fun, and stop giving an eff about what other people think of us, we'd all be better off, whether we choose to game on a console, or a PC.
As a personal aside, I'm glad to be back in the PC gaming world, as I don't have to put up high prices, no sales and price gouging. I also don't choose to surround myself with the type of people who buy into all that stuff. I'd recommend it, it makes having fun with a hobby I love so much better! :D