Deportation is impossible, so in actuality we're unable to do so.
I believe that Sharia law is in direct opposition to our morality and laws as a country (cutting off hands, stoning homosexuals, etc, is wrong and against our country's laws) then there should be consequences for those people. Islam is fine - it's a religion just like any other - but Sharia law is not okay and should be prevented. We're not being dragged back to the stone age, which Sharia law is in.