A plain reading of the 2nd does not allow the gov to strip any person’s right to keep and bare arms. Further, its an unalienable right, removing the Constitutional protection cannot extinguish the per-existing right.
You are correct. However the Fifth Amendment does give the government that right -- you can be deprived of life, liberty and/or property given due process of the law (which means conviction in a court of a serious crime). Those are all those most basic rights and yet any or all can be forfeited when you commit a crime.