My post was not about the right to have a certificate but the fact that you do not have the right to own a particular firearm unless you have good reason. For instance, you have 10 acres of flat field surrounded on all sides by houses and you want to clear it of rabbits, you don't have the right to a .308 and the police are not being unreasonable by telling you you should look at something else.
I use extremes here but hopefully make my point. I don't doubt that everyone is entitled to posess a FAC unless disqualified, my argument was aimed at what firearms you can posess and not expect