Sasuke has lost the title of worst father in Naruto

[Supersocks]

Although some may still consider Sasuke to be a relatively poor father due to his absence, Gaara's father hasn't shown any fatherly feats on any level close to those of Sasuke's.

Spoiler

Here he shows concern for his daughter.

You must be registered for see images

Spoiler

Here he protects her from the blades directed towards her, placing her well-being above his own.

You must be registered for see images

Spoiler

Here he admits he is at fault for something we do not know about yet but we do know it is in relation to Sarada

You must be registered for see images

So in conclusion, The fourth kazekage still holds the mantle of the shittiest dad in all of Naruto history.