I can't believe what Lizal is doing. Yes, you seem more interested in politics. Ok, never mind/don't worry, let's go. ...
It can be understood as follows:
I can't believe what Lizal is doing. [What is lizzar doing] As the object clause of I can't believe, it seems that, yes, you are more interested in politics. [It seems that I understand with you and am more interested in politics. That is: you seem to be more interested in politics. (You seem to be more interested in politics) Well, it doesn't matter. Let's go. ...