There isn't much you can do about something small like that (I assume that it is a small loss). You can tell the police, but the fact that it had been there for a month would sound fishy. This gang may very well be real, but if you go around accusing people around the police, you'll start looking strange yourself. The point you made about few people liking you is odd. The creeps that supposedly did this to you would do it whether you were well liked or not. The 'drama' people frequently reference is simply a matter of choosing to stay out of dishonest dealings (e.g., cheating on your girlfriend, not telling someone that their partner is cheating, not anonymously informing the proper authorities if you have a good case for someone doing something highly illegal, such as larceny, hard drugs, or grand theft).
You can believe me that there is no advantage to secluding oneself from others. I have gone through a period like that- no real friends in school, no one to trust. That period lasted from Kindergarten to 7th grade. I know that world, and I don't want to go back. Granted, you live in a neighbourhood that does not compel one to be very trusting, (just look at what those punks did to your R/C car!), but you must realize that even though there will be haters, most people will enjoy someone who talks to them. That's where you come in.
Think of it from their perspective. Wouldn't it be nice to have someone who listens to you, respects your opinion, gives a compassionate reply, and brings up topics of common interest from time to time? I'm sure that you'd enjoy that- and giving that treatment to others is almost all it takes to be well liked. Looks, athletic ability, and wit all help, but if you're a dirtbag or a complete introvert, they're all but useless.
I did it, and look at me, I'm as white and nerdy as they come. I debate people for fun on the internet, have no sport, and particpate in several academic after-school activities. I did decide, however, that other people were worth my time, and now people see me and shout my name from speeding cars, across hallways, or from classrooms, and I always have someone to talk to.
So get out there, and get involved. If you're nice to people, everyone but the haters (everyone has them, even the most popular kids) will return the favor. The only choice you need to make is, "Do I care enough about the other human beings in my life to be compassionate and outgoing toward them?".
-Penguin
