One more thought I want to add: say you do buy land, and lets say the doomsday that some people have been predicting does come to pass. You have to be mentally prepared that you as a landowner with food to spare, will become a target of roving bands of robbers and thugs (most likely made up of minorities). They are going to rob you. So, in order to combat this, buy lots of guns and ammos (as recommended by Mr. Torba), learn how to shoot. But not only this, you must try and find like-minded people, and form a little community of sorts. You will help each other in times of need, and watch out for each other. And when gangs of minority thugs start to threaten you, your properties, or your families, band together with your neighbors, your fellow landowners, to defend yourselves. In other words, don't become little islands. Though you might be self-sufficient in terms of food, you still need help in other areas, such as defense. So, buy up land with other people who share your vision, or if not that, then aim to become good friends with your neighbors. And did I mention that you should have lots of ammos and learn to become a good shooter?
I just heard that the government is going after farmers. This is their way of telling us how important farmers are. So what I would do is become friends with farmers in your area, talk to them, listen to the problems the government is causing them, help them out however you can. You probably won't be able to completely convert them in one go, but it will be good to earn their friendship. And then, try and sow in their hearts distrust of the government. Help them see the government truly does not have their best interest at heart. Show them real-life examples, which shouldn't be hard, as there will be plenty such examples. You can also consider becoming a farmer yourself, it's your decision. But what I do know is that if you do, it would be a very positive thing, because the government seems to be threatened by white people owning land and growing their own food. Whatever the government wants you to do less of, is what you should do more of.
Just want to add a bit more about becoming friends with farmers: the best to convert someone to our side is not to come at him with stuff you want to say. The best way is to ask him how he is doing, and if he has troubles, listen to them. We would like to believe that humans are persuaded by rational arguments, facts, and logic etc. However, that's rarely how it works. Most people go by how you make them feel. If they like you on a personal level and feel like that they can trust you, then they will be willing to listen to a lot of things you say. So your number one mission isn't to persuade and convince, it should be to win people's hearts. This doesn't only apply to farmers, it also applies to members of the military. In fact, it applies to pretty much everyone. So, be a good friend, be the first one to extend a helping hand, and act honorable. Remember, we are the ambassadors of our cause. We should always conduct ourselves in a way that will make people think, "He is a good guy. He can be trusted".