The ultimate cruelty?

My son cannot speak...sure he is happy now, but what of when i am gone? When his happiness will depend on others that do not love him...

Is it so wrong to want to prevent this in future people ? Do you think if he had the choice whether to talk or not he would have chosen the inability to speak?

I am not for eliminating people who are simply different, but eliminating taking from a person who had no chance to be the people they were born to be...