Dumping on Zeke Braverman and the disrespect for ancestors on Parenthood

[PartyOfOne]

I was very disappointed to see in the last few weeks that Seth has come back to Parenthood. Why was this? Did anybody want him? This storyline does not make sense.
Sarah did not particularly like him that much. Now all of sudden she wants to help him, even though he is at the bottom of the barrel. Why? If anybody would have cared it would have been Drew. So why wasn't it? Why would Sarah ruin her potential relationship with that teacher for her divorced drunk husband? Her father can't stand him. I was rooting for him to beat Seth up at the beginning of that episode. Unfortunately he didn't. Amber doesn't care about him either.
I also do not understand all of this dumping on Zeke that is happening on this program. Why are all of these people giving him grief for wanting to get rid of Seth? He is nothing but a loser, and he is trying to protect his family. Why on Earth would the family give him money? Is it because he is old and conservative? I can think of no other reason for it. Also his arguments against Julia adopting the co-worker's babies were reasonable but Joel didn't like that either? I did not understand that.