I don't want my husband to drink alcohol
Does his drinking scare you?
Yes. He could end up an alcoholic like his dad.
It's fine to want your husband to stop drinking if you think it will be a problem for him. Alcohol abuse can be very dangerous if it becomes an addiction, but if his drinking is responsible and safe, you should not try to control his actions.
That's why it was okay. I will stop him from drinking.
I think you should talk to him gently and tell him your concerns. If you come off an accuse him he might build a wall and resist your efforts.