I think following Islam should be made illegal, and offenders should be prosecuted to the fullest extent of the law.
Why do you want to make Islam illegal?
When I lived in Egypt, I was forcefully converted and went through a terrible experience.
What they did to you was wrong, but making it illegal to practice a religion is also wrong. People will just take it underground and it will fester. You should try to lobby to make Islam better.
I never liked that place, so at least now I get to do what I want including banning Islam.
It is understandable to be upset and those individuals who hurt you should be stopped, but banning the entire religion is not right and makes others go through the same experience that you did.