"It is unlawful for them to legislate away these rights. Unless they repeal the 2nd, their infringements are unlawful."
If I may, here...
We need to eliminate the mindset that says anything of the like, because that demonstrates a TOTAL misunderstanding of the issue of rights and where they come from.
The enumeration of specific rights, to wit, those in the Bill of Rights (since that's what we're talking about, here) does NOT constitute the "granting of rights".
Those rights PRE- EXIST. In fact, you'll note the specific wording in those particular amendments constitutes proscriptions AGAINST the government with respect to those rights.
Here are some examples of specific wording:
First Amendment: "Congress shall make no law..."
Second Amendment: "...shall not be infringed."
Third Amendment: "No soldier shall, in time of peace, be quarted in any house..."
Fourth Amendment: "The right of the people to be secure in their...shall not be violated..."
Fifth Amendment: "No person shall be held to answer for a capital or otherwise infamous crime unless..."
Ninth Amendment: "The enumeration in the Constitution of certain rights shall not be construed to deny or disparage others retained by the people."
These are all restrictions AGAINST the GOVERNMENT in protection of rights the people ALREADY HAVE.
What this means is that EVEN IF the Second Amendment were to be abolished, the Right to Keep and Bear Arms would STILL EXIST.
The Legislative Branch was long recognized as the most powerful, and therefore most dangerous, aspect of our government for the simple fact that THEY WRITE THE LAWS. The Bill of Rights was, essentially, a re-enforcement of the "We the People of the United States" aspect which states that the power of the government rightfully comes from the people themselves, and not the other way around.