How would I go about taking several tons of food from the nearby refugee camp?
That will be a very horrible thing to do. Why would you want to take food from people that are suffering?
I just don't like them to have a choice of having something to eat in the dinner table.
The people that you are going to steal from maybe depending on that food source and they may end up not being able to eat that day because you have stolen from them. Why don't you just focus on your work, and try to earn money so that you can buy food for your own and not steal from others?
There are other people who could use the food. They should go back to where they came from.
Whatever you think about them being here, taking their food away is wrong. Starving them isn't going to make anything any better.