What other constitutionally protected rights do you not "need" full access to? Do you "need" a right to a swift trial by a jury of your peers when there is clear evidence of your guilt? I can think of quite a few examples where public outcry would have resulted in a different verdict than the actual trial did. Are the sales of assistance devices to be prohibited even to the disabled? Would that not violate the ADA? Or do the disabled lose their access to shooting for enjoyment "for the greater good"?
No "need" isn't part of access to the rights, such as the right of self defense, that are endowed by Nature and Nature's God and not the governments instituted by man that are subject to all of the flaws inherented with the flaws of man.