Similarly, a business owner/property owner can not deny you the right to carry a firearm. They can deny permission to persons carrying firearms onto their property and into their business, whether that person is a guest, customer or employee.
"In the spirit of your challenge I suggest you put a sign on your place of business/property line that says "No Blacks, No Irish, and No Muslims allowed" and see what happens."
I would argue that laws precluding such signs are also un-Constitutional. Yes, I recognize that such discrimination has been recognized and barred by law, but I also consider those laws onerous intrusions on the rights of the property owner. Having said that, the law still merely states that a property owner (of a public venue) can not bar a person from their property for certain, specified reasons, it does not prevent them from barring persons for reasons outside those specifically outlined in law. We've already established that a property owner can bar people from exercising Constitutionally protected activities on their private property (you kicked the satan worshipping Obama campaigners off your lawn).
Business owners in my state do not have the legal authority to forbid customers from carrying concealed firearms. Employment is an agreement between two parties and is completely different subject.
I would argue that laws precluding such signs are also un-Constitutional.
You might be right but that doesn't change reality one bit.
We've already established that a property owner can bar people from exercising Constitutionally protected activities on their private property (you kicked the satan worshipping Obama campaigners off your lawn).
No we haven't. The rights privileges and immunities guaranteed by the constitution to the individual can't be nullified simply because one is on private property. An individual can be asked to leave a private property but their rights cannot be violated. As an example, if I had satan worshiping, Obama campaigners on my lawn (but I repeat myself), I could ask them to leave, but I couldn't legally gag them or use an oxy/acetylene torch to melt their pentacles to their chests.