I am a conservative minded constitutionalist who is pro choice (I chose life) and who realizes the biological differences in people who are GLTB.  The supreme court of the United States ruled that gay people have the right in all 50 states to obtain an issues marriage license and that the laws of each state must respect the marriage license issued to those people in riciprocy.  One can universally apply that ruling of no discrimination when issuing of licenses to individuals who are exploting their constitutional rights, and their ability to benefit from things like married IRS tax code etc, over to gun control laws. My Pennsylvania CCW permit is the exact same as a marriage license. It is now valid in all 50 states and all is territories. Including Manhatten, Philidelphia, Washington DC, and Chicago. The Supreme Court ruling will eventually be extended to cover this. One might want to argue that like a jurisdictional hunting and fishing license or a license to sell liquor or cars that states have control of such enforcement. However with drivers license (laws apply to be allowed to travel freely), and marriage license (Supreme Court ruling) and firearms permits/license to carry (second amendment) riciprocy is now guaranteed by that supermen court ruling over gay marriage.