I do not believe that Felons should have the right to own firearms. In fact I don't believe that felons should have any rights like Voting, etc.
I once thought the same way, until I got a bit older and I found out who was felon around me. There's more than you think and they're not bad people.
Carry a knife that's over 3" long in Michigan? Well, you just might be a felon depending on who the cops are and who the judge is. Run that one past the founders and see what they think.
Carrying a gun in your glove box? Well, you're a felon. At least you were 20 years ago here. If you did it then you lost your RKBA (a natural right we all presume) and you also lose CCW privledges if you ever got RKBA back from the state AG.
Now, would a founding father be OK with the loss of RKBA for, well, exercising RKBA? Heck no.
What is a "felon" today was most likely a petty crime, if any crime at all, back in the days of the founding fathers. Felons lose their RKBA without spending a single week in prison now.
I know, personally, three felons and one metally ill person that has no business owning a firearm. Two of the felons are reasonable people. They do not own firearms. One was convicted of having a firearm in his glove box one was, well, he stole a car. Not good. They don't own arms and won't so long as it's illegal. The other two? Well one's a crack dealing scum sucking low life (relative) that will own a gun no matter what. Who gets his guns for him? His mentally ill mother that doesn't even realize that her father is dead for 3 months. THEY own firearms. The guy with a pistol in his glove box 20 years ago doesn't though.
My cousin gets out of prison in about 6 months now. He shot two men last summer with an illegally owned pistol while already a convicted felon purchased by his drug addicted mother, illeaglly, over a drug deal gone bad. That's after conspiracy to comitt murder (plea bargained out of that one, breaking and entering, and driving a get away car for armed robbery. Those are seperate offenses that he has been caught for. God only knows what else this sick sucker has done.
Illegal or not, he can get his hands on a .357 wheelgun quicker than I can. No law will stop him.