Whether Bundy’s cattle were on public land is a separate issue but it provided a pretext to take property and business.
The issue is that a man was almost thrown off his property at gun point and dispossessed of his business at gun point so that another business may benefit.
Without exercising our inherent rights protected by the 2nd Amendment this legally conducted criminality would have succeeded.
There was a court order, but there seems to be a deeper issue here if so... something like discriminatory terms.