You might do a bit more reading:
"The Second Amendment (Amendment II) to the United States Constitution is the part of the United States Bill of Rights that protects the right to keep and bear arms. It was adopted on December 15, 1791, along with the rest of the Bill of Rights.
Two Supreme Court rulings, District of Columbia v. Heller (2008) and McDonald v. Chicago (2010), clarified the meaning of the Second Amendment. In Heller, the Court ruled that the Second Amendment protects an individual's right to possess a firearm (unconnected to service in a militia)
 and to use that arm for traditionally lawful purposes, such as self-defense within the home. Additionally, the Court enumerated several longstanding prohibitions and restrictions on firearms possession that it found were consistent with the Second Amendment. In McDonald, the Court determined that the Second Amendment limits state and local governmental authority to the same extent that it limits federal authority."
Second Amendment to the United States Constitution - Wikipedia, the free encyclopedia
The problem is that most in the US don't even know the full text of the 2nd amendment.... they just like to cut off that part about a well regulated militia being the reason we all get to have our guns..... look it up and read it.