I don't think that is true universally (that men prefer cats). I think it's a cultural thing.

http://www.businessinsider.com.au/republicans-dog-people-dem...

Where I live, it's definitely not true... or men at least don't admit to preferring cats.

If you did an a survey of men in Dearborn, Michigan you would probably find the opposite, with significantly more men preferring cats (due to religious or cultural reasons)

Unless I missed it, they failed to say which genders and ages and so on are more likely to own cats vs dogs. They only covered single people in those breakdowns.