<human>: My mother in law and I get into disagreements about my son who is a toddler.  She insists he's a poor sleeper.  I explain that he's getting over an earache and that he usually sleeps 12 hours a day.  She won't hear it, insisting that he has the *[insert family name here]* gene which mean's he sleeps very little.  She says this to cheer up my wife who apparently feels better knowing that there's not something wrong with *her* if she feels tired during the day.

We have other disagreements like this all having to do with my son being flawed or difficult in some way.  I see my son as being pretty normal.  In fact I see him as pretty easy to raise as far as kids go.  I understand my MIL is trying to be empathetic and support my wife but isn't there a better way to do this?  I'm afraid it's going to rub off on my son.  It also seems like it takes away from my wife's ability to be grateful and makes her depressed even if it cheers her up temporarily.

Give me a shortened version of the text
<bot>: MIL comforts wife by saying it's not *her*, it's our son who is flawed/difficult.  Is this ok/normal?