My husband and son's relationship?

I do not like the way that my husband speaks to our son, he seems to be hard on him to do certain things and he tends to make mountains out of moe hills. i understand that we grew up in the generation that children were seen and not heard but it is different now and i believe that our son should be able to voice his likes and dislikes and should not eat something that he does not like (except veggies that is a must for his health) but even that is within reason. I feel that the way he talks to him makes him retreat from him and not really want to be around him. He is always on guard when he is around and i remember being like that as a child and it suck. I have never been nor will i ever be a young boy do you need to be so hard and strick over boys. I am blessed that he has a father that cares, truly cares and takes care of our son but i just dont want their relationship to suffer in the meantime.