Nothing. In fact I do despise Islam.
I despise all major monotheistic religions with the exception of Pastafarianism. Islam is just doing what Christianity was doing a few centuries ago: mass "conversions" and suppression of internal dissent. As for Hebraism, they didn't get a chance for several reasons. They basically got the wrong end of the stick and never had an army until the 20th century.
You don't need a religion to know what's right and wrong.
Killing someone is bad. Stealing is bad. Harming your own body with drugs is obviously bad. I don't need someone else telling me those I am fully capable of understanding them myself.
The thing is you have a choice. You can do them and make your life worse or you don't.
Holy books like Qoran, Bible and Tawrat did serve their purpose when there was no internet. Qoran and Tawrat didn't want their followers to eat pigs because the writer of those books was aware of that cooking and cleaning pigs wasn't as easy and safe as cooking &cleaning sheep so they banned it altogether. It made sense back in the day.