Validity of the infographic itself
It's important to remember that this graphic isn't substantiated (as far as I could determine) by any actual data. It's more a colorful and interesting way to look at many of the popular ideas about the way that liberals or conservatives are: how the live, the kind of jobs the like, how they raise their children, etc. When I looked at this a year ago (it seems like) I remember feeling like it was almost certainly created by a liberal because, as a conservative, I didn't find its portrayal of me and those I know to be very accurate...Which wasn't surprising since it wasn't actually based on anything real. It's just a graphic to inspire controversy and support the liberal perception of conservatives as the next worst thing to Neo Nazis.
Caution must be exercised though when viewing this graphic as anything more than entertainment or mildly interesting. Make a graphic like that based on REAL ACTUAL data and *THAT* would be interesting indeed.
To reiterate, this graphic isn't an "infographic" because infographics--by definition--must be substantiated with data. That is, a true infographic uses effective, interesting graphics to convey information. This "infographic" uses effective, interesting graphics to convey propaganda.
