In most couples the women do more housework. Not all (for example, my wife is a slob). In some couples both people are slobs, and in some they're both neat-freaks. So a better way to look at it is:

1) In most couples, one person does more housework than the other (typically the woman). 
2) The person who does less housework usually doesn't regard this as a problem, because they A) don't value housework, or B) they're lazy. 

Instead of turning this into a gender issue, it's better to look at it as a difference in values between partners. Compromise is probably necessary. And at the most basic level, a schedule of chores to get the minimum agreed-on housework done.