> Despite wealth inequality you can have societies which aren’t at each other’s throats.
Can you name just one civilization with staggering inequalities which has not been subject to social conflict?
> The root of our issues in the US is the selling out the lower classes’s potential by the government and industry to offshoring, thus reducing their economic power.
I don't think this argument holds. The US was the theatre or major class struggle long before the neoliberal offshoring waves. Popular riots and massacres by the local authorities is nothing new, see for example the battle of Blair Mountain in 1921: https://en.wikipedia.org/wiki/Battle_of_Blair_Mountain
More to the point, the GDP/capita in the USA has kept growing over the years despite offshoring. The fact that some parts of the population struggle to feed themselves is due to conscious wealth-capturing schemes from the rich and government-friendly corporations. Or as Warren Buffet once put it, "Actually, there’s been class warfare going on for the last 20 years, and my class has won".
When the people realize how duped they've been with empty promises and scapegoats, they are bound to loose their shit and be at someone's throat.