Does History Lean to the Left

> "America First" (aka Israel First) is about regressive isolation

You seem to be confused about whether you want the US to be isolationist or not — or is it only humans that you don’t like that you’d want to exclude?

I mean Egyptians and Sumerians were some of the longest lasting dynasties and they were extremely regressive and exclusionary. They had a small wealthy elite and lots of poor subjects. Feudalism, humanity's most common and enduring economic system was built around inequity, privilege for the few and repression.

Assyrians were extremely successful and they would commit random murder of their subject population.

I guess you can hold a mirror to just modern civilization and say western civilization... If you forget the racism and sexism of the 20th century... Which leaves the current society and if you're saying the society you live in is the most enlightened and progressive well I mean that sounds like the definition of bias

Not really, and even in your example, liberalism is strictly a right-wing ideology. The issue comes down to people using internal biases labeling ideologies according to their own in group biases, ie "left-wing is good and i'm a liberal therefore liberalism is left-wing". There are very few true left-wing politicians left in the western world (true communist/anarchist).