Ramblers and the "right to roam"

This was in the news today.

I don't understand the ramblers objections and, really, they need education on the principles of basic property rights. If a piece of land is privately owned, then you have no specific "right" to enter that property. Ramblers have the option of pitching together and buying their own land to walk on.

Is this unfair to ramblers? Some may believe so. Nevertheless, property rights are intrinsically linked to one's self-ownership. One's fundamental rights are rights to life, liberty and property and NO human being should have the power to violate them.