>>>The 2nd amendment is 2nd because it is the 2nd most important right to ensure an enduring democracy...<<<
No. The first 10 amendments were all considered equally important, and were not placed in any particular order. In fact, our current "First Amendment" was originally submitted as the "Third Amendment". The first two amendments failed ratification by the states, so the Third became the First by default.
This is not to say that some of our Founders placed extra value on one amendment or another. Some thought the RKBA the most important; some thought the Freedom of the Press.
Article the first ... After the first enumeration required by the first article of the Constitution, there shall be one Representative for every thirty thousand, until the number shall amount to one hundred, after which the proportion shall be so regulated by Congress, that there shall be not less than one hundred Representatives, nor less than one Representative for every forty thousand persons, until the number of Representatives shall amount to two hundred; after which the proportion shall be so regulated by Congress, that there shall not be less than two hundred Representatives, nor more than one Representative for every fifty thousand persons.Article the second ... No law, varying the compensation for the services of the Senators and Representatives, shall take effect, until an election of Representatives shall have intervened.
Although the originally proposed 2nd Amendment was put into effect through Amendment XXVII ratified in 1992.