How come they haven't passed the Dream Act?

Like I know a lot of people don't want it to get passed, but what's so bad about it? It gives SMART & GOOD (and does who have a clean record) students great opportunities. It's not like it's going to legalize every illegal immigrant. I know that being in this country illegally is a crime, but some of those kids didn't choose to come here; they were bought here when they were so young. Honestly, they should pass it. And i know that some of you ignorants are going to say rude stuff about it, but that's just my opinion.