What's to argue? The 2nd Amendment does not bind private property owners to allow guns on their property any more than it binds you to allow me to use your front yard for a protest. We've been though this, but evidently it hasn't sunk in yet.
The government isn't dictating the terms of use? Willful ignorance is an ugly thing - try educating yourself.
See 482.
Try to refute the points Spunkets made therein.
"Willful ignorance is an ugly thing - try educating yourself" is yet another divisive generality.