This is about people wanting something for nothing. Namely, the ability to graze cattle on land they don't own, at no, or very low cost.
That's what Bundy was bitching about, that's what The Hammonds are bitching about. Instead of paying their grazing fees and trying to get things changed, Bundy said fuck you and just grazed. The Hammonds hunted illegally on federal land, then started a fire. They also started a fire and it damaged federal land and put firefighters in jeporady. Intentionally setting a fire and causing damage to someone elses property is arson. Plan and simple. There's a mandatory minimum for arson? Then don't do the crime if you can't do the time.
[I know I guy who joined a company as CFO started by two of his college friends. Turns out that they were running a ponzi scheme. He quit after 4 months and figuring out the books were cooked. But since he didn't turn them in, and lied about knowing about it in his first FBI interview (he later cooperated), he is doing 5 years in a Fed prison. He never made a dime off people getting schemed. His friends? One did 2 years, other 10+. Is that fair? No. But that's the law]
Everything else - state's rights, how the land is managed and by whom, the length of the sentence, etc. is just bullshit smokescreen.
This whole thing about the "people" controlling the land is more bullshit. The "people" do control it - in the form of the federal government which manages the BLM and other lands. What "people" should be deciding who/what uses it? The Bundys? That's what they'd have you believe. That they know what's best. Yeah, best for them.
Ranchers grazing lands for free, and then bitching when they are forced to pay for use of that land (either for grazing or transporting the cattle) has been around since the implementation of barbed wire. The vast majority of ranchers pay their fees and go about their business.
If you don't like it, get the law changed. But you can't just decide which laws you will and will not abide by. That's anarchy.
Look at off-road trails in the east. We bitch about them being closed, but we don't get guns and go 4-wheeling and tell the police we'll shoot them if they force us to leave. We don't say that the Fed government (or state) has no right to tell us not to off-road. We accept that and move on. These guys don't.
The lack of consequences for Bundy in Nevada just emboldened these yahoos. The feds caved, and now they think they can do what they want.
As for "did they break in" - It was a closed visitors center. You want me to believe that they just left it unlocked? The refuge has hours where people can/can't be there. If they are there when they aren't supposed to be - that's trespassing.
"We don't want a fight, but we'll shoot you if you try to remove us." These guys want to have another Waco or Ruby Ridge. They want to die saying they fought the tyrannical government. If there was a guy (or group) waving around guns in the center of your town, saying they'd shoot anyone who told them to leave, you'd be cool with that?