Remember the Korean and Vietnamese Shop Owners during the LA riots using SKS rifles to fend off looters? That is the purpose of the 2nd Amendment. To protect life, liberty and property.

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"It is the Right of the People to alter or abolish the Government"
Declaration of Independence
"Never trouble another for what you can do for yourself."
Thomas Jefferson
"If you put the federal government in charge of the Sahara Desert, in 5 years there'd be a shortage of sand."
Milton Friedman