Yes of course it is. The Koran tells men to beat disrespectful wives, disgusting.
Do you feel the same way about the Southern Baptist Convention telling wives to "gracefully submit to their husbands"? The Koran and the Bible aren't as different as many would think. I agree with you that Islam is more sexist.
"Submitting" to your husband in a peaceful and understanding way is a LOT different then being authorized to beat the hell out of your wife if she speaks out of turn. The whole point of the "submitting" thing anyway is explaining that the husband is the head of the household and a wife should support the decisions of the breadwinner. Kind of dated, sure, but not horrible like being encouraged to beat a disobedient wife.