Are we really playing god when we are trying to fix genetic problems
It is going to happen. People will do things just because they can without ever really wondering if they really should.
I do think gene editing should be regulated, studied and modification procedures should have to be approved by an ethics panel. However, it should move forward in science. Just carefully.
I may be biased though, as I myself have a rare genetic mutation (Stargardt's Disease) which caused partial blindness. Also in my family there is a predisposition for diabetes.
It is a lot easier to be against gene editing when you have not suffered or are not at risk from genetic anomalies.