Do you actually not know the difference between free trade and capitalism? Capitalism is when investors own the means of production in order to extract profit from a disparity between price and cost (including labor wages). There are plenty of free trade models which don't utilize capitalism, they are not the same thing.

Grog (the worker) owned his own axe (means of production) and traded the wood he gathered for shiny shells (free trade). Capitalism would be if Bunga (capitalist) owned the axe and then traded the wood Grog gathered himself, giving Grog some shells while keeping the rest (profit).

People have bemoaned capitalism as long as it has existed. When do you think this "golden age" of capitalism was when everyone was universally content with the state of affairs?

Okay, I will not condemn communism, I will however condemn whatever China and Russia (and others) are doing which they call communism, while not granting most of their workers any rights let alone common ownership of the means of production or abandoning money, private property or social classes.

To your imperialism argument I quote Lenin:

Imperialism, the Highest Stage of Capitalism

And even if you differentiate between imperialism and capitalism... How is the US massacre problem imperialism? How is the "war on drugs"/the opioid crisis/whatever the US does with their healthcare-system? How do you explain the constant need for growth in spite of a worsening climate?

Aha, so only "TRUE" capitalism can be critiqued.