usa is built on genocide americans benefit directly from that imperialism

I did specify settler colonialism as distinct.

Anything manufactured overseas is cheap because imperialism has supressed living conditions and wages through violence or the threat of it.

Yes, things are "cheap". But real wages are much lower than they used to be when Americans actually played a part in manufacturing, so their relative purchasing power is actually declined. In the same time frame, every single component of the social democratic safety net has been shredded. The expansion of production imperialism and mass labor exploitation from the global south has coincided exactly with the degradation of American life along every single measurable axis.

Huge numbers of Americans live in cities and homes built before the Cold War and especially long before unquestioned US hegemony, and they can't afford those. No infrastructure that isn't a highway (which actively makes life worse in every metric) has been built since before WWII. Every piece of water, sewage, electrical, other utility infrastructure is in deep disrepair. Healthcare is completely inaccessible for millions and millions of people. Education is abysmal. Depression and obesity run rampant. Millions of people are killed by drug epidemics, COVID, and cars.

The benefits of imperialism are funneled to the capitalist class and the labor aristocracy, which is absolutely real but limited to a large minority. The majority of the US working class has received nothing but piles of plastic garbage and garbage that resembles food. In no quantifiable sense has the extension of US imperialism improved the lives of most Americans.

Edit: we should never forget that the fundamental feature of imperialism as we understand it is the dominance of monopoly capital. The effects of monopoly in the imperial core are also extremely bad for the working class, and the US today is more monopolistic than any large country has ever been.

yes those masses and growing of homeless and those bleeding out in gutters in ghettoes and those being wasted away dying at 50 in lumpenized meth-addicted post-industrial towns and those in run down slum neighborhoods with poisoned water, and those lining mass prisons wall to wall in greater proportion than anywhere in history really 100% benefitting because of cheap oil and 2ndhand toasters.

to say nothing of capitalism's contradictions being definitionally impossible to outrun. The rate of profit always falls. Anti-imperial and de-colonial struggles will always continue until they win. China is only growing as well and actively has been speeding this up for ages. Monopoly capital being financialized in globalized firms and stored in swiss banks etc. does jack shit for many but the few who own it and the tiny number of middlemen. This just smacks of a detached and privileged position that comes from not spending a lot of times in truly poor and destitute and broken and left-behind areas even in the US in the 'heart of the beast' so to speak. Idk how anyone who's lived and worked in these kinds of places could say this kind of stuff and the other ultra handsitting stuff you said elsewhere, which also erases a long history of struggle which prompted multiple waves of reactionary crackdowns and criminalization and both bureaucratized and street white terror campaigns for a reason.