For example, do you argue that released felons should be able to purchase firearms? Don't give me any babble about "they should be in prison" that is beyond the scope of the question. Simple yes or no question. Do you believe felons who have served their sentence should be allowed to legally purchase firearms?
We can argue about whether pigs would be able to fly, if they had wings, but that's beside the point.
Dangerous, convicted criminals, need to be kept out of the free population. They need to be kept in prison, or else put to death. Your side opposes this,
because you are on the side of the criminals, and against that of law-abiding citizens. And you support
“gun control” for the same reason.
No, I am not going to let you get away with using the consequences of one of your side's defective policy positions as an excuse for another defective policy position.
But to answer your question, yes, absolutely. A person with a criminal past, who has served his sentence, and
“paid his debt to society”, does not owe society any more loss of his own rights. Yes, he absolutely ha as much right to keep and bear arms, as affirmed by the Second Amendment, as every other free citizen, and government has no authority to violate this right.
If allowing him this right is dangerous, then the error is not in allowing a free man this right; but rather in having giving him a sentence that was not appropriate for his established level of criminality. If he's that dangerous, then he never should have been set free.