@amberpep,
So sorry you're going through this, everyone deserves safe place to live.
Not sure of your state, but many states / counties have information on tenants' rights. As an example, this is from MN Attorney General website on Landlord / Tenants Rights and Responsibilities. https://www.ag.state.mn.us/consumer/handbooks/lt/default.asp

Even if not in MN, it has many helpful suggestions for before, during and leaving a rental.

As you mentioned, even if your landlord wanted to get rid of bad renters, the process to evict someone who does not want to leave can be a long and costly processes. If renter is paying rent, then landlord has to prove they are a violating lease or safety risk. Sounds like some of your neighbors are, but in court the landlord must provide proof, police records, etc...

Keep looking for other places, though it can be tough due to costs. The good ones usually have waiting lists.