In the same thread, think back to the times when the Consitution was written. There was no internet or TV back then. In your line of reasoning then we shouldn't have the First Amendment Protections extended to these types of mediums, right?
Just like speech is covered to include any types of medium, including 21st century ones like internet, bearing arms is also extended to arms that are made right now. And since the 2nd Amendment was incorporated into the Bill of Rights specifically to throw off a tyrannical government, the least we the people should have is the same type of weaponry that the government has in its possession to keep them in line.
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