The weakest argument for gun ownership in the USA

[drone]

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Utter destruction of a rebellion by US military forces
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A citizens' revolt could be easily crushed by the US military, and the tyrannical government would cease to exist due to the economical cost of the aftermath. Who would pay to build it back up again? China isn't going to fund that bill. Smoking rubble and an oppressed citizenry make for a horrible economy.

If you had payed a proper tax in the 60's, you might not have had the problem with gangs that you have, thus you wouldn't have had that riot

Strike 3! The upper income tax bracket in the 60s was 70%+. Income taxes across the board were much higher than today. It wasn't until Reagan when the tax rates were significantly reduced.