So, I've spent the last two days arguing about this with my brother... I'm going to give the show the rest of the season. Maybe my complaints will be addressed. I think Korra is salvagable as a character... I think Mako and Bolin are not. But, there are five people in the world whose opinions are, as far as I'm concerned gospel (even when we do occasionally disagree), and my brother is one of them.
Okay, Korra, you have my patience. Thank my brother.