c'mon, I said "for example."
For a more complete list, I would argue:
Character action
JRPGs
SRPGs
Fighters
Shmups (Jamestown is not an asset to the PC)
Rhythm
Puzzle
Platformers/side-scrolling actioners
I don't know what "character action" means - is this Devil May Cry / Bayonetta? Because most consoles this gen are hardly bursting with similar titles. Best version of DMC4 is on the PC though.
JRPGs, well, you have Y's, Recettear, Last Remnant, Chantelise, Fortune Summoners, and a bunch of Eastern style MMOs. It's not like JRPGs have been well represented on anything except the DS this gen.
SRPGs is a hilarious choice, because the PC is the birthplace of the genre (unless you exclude anything that isnt Tactics Ogre / FFT / Fire Emblem as a SRPG); you've got everything from the grand daddy of them all Xcom, up through your various Heroes Of Might and Magic , King Arthur Roleplaying game and Kings Bounty games, and depending on your niche the PC specific turn based combat of Dragon Age: Origins and a shitload of SRPG mods for Civilization.
Fighters, again, a genre not exactly well represented on consoles either this gen, but you have SF4, MvC3, SFvT, Guilty Gear, Blaz Blue... that's a decent fucking representation!
Shmups, again, not exactly the most released genre on consoles either this gen, and not one I'm particularly bothered about, but
these guys seem to have a pretty wide selection going.
Rhythym games? Well, you've got official releases of the DJ Max games, Guitar Hero 3, and I'm pretty sure there were some PC DDR releases. Going into the clone games territory you have stuff like Frets On Fire, and then of course you have the music hybrid stuff like Symphony, BeatHazard and Audiosurf.
Again, pretty niche genre thats pretty well represented on PC.
Puzzle games on PC? Jesus, go to Newgrounds or Kongregate. If there's a genre that ISN'T under represented on the PC its puzzle games. Puzzle games are a staple of 'my first game' from independents. Well, that and...
Platformers / sidescrolling action games. I mean, you must be actually deliberately and wantonly choosing not to see titles released to not see how many of these are around.
Indie platformer with retro graphics is almost a meme at this point in time.
Yes, games in these genres exist, but the offerings are pretty limited. And while there are quite a few platformers when you factor in indie games, there aren't a whole lot of genuinely great games to be had.
Well sure, if your selection criteria is "exclude all games that prove me wrong, and define genuinely great games as games also or only available on console" then the Pc has nothing.