You must have had a different upbringing that most of us. It must be special to live in a bubble with no peer pressures that had strong influences on your course through these murky, teen waters.
There are plenty of things to like in many characters, right down to Fez caring for Rue (yeah, the drug dealer). Almost everyone here has a flaw (which should you remind you of real life, if you've actually lived it).
Speaking of Rue, if you feel no empathy for her at all, you're missing a lot. Yes, she's being extremely weak on a sea of caring people (her mom, her sis, Jules, now this Ali guy). You might call it selfish -- I see it as a young person learning the hard way.
What you're SEEING is not supposed to be a Brady Bunch family of false teens -- these are real life-like events (even if often exaggerated, because hey, that's what stories are all about) and is also a great dip-stick into about how life is for this age group in these times (because even though I had touch trials and tribulations in my previous generation, it was quite a big different than this).