"If begging the question worked, we wouldn't need it smuggled in through a shitty meme."
"Over 900 military bases around the world" is doing a lot of heavy lifting considering a) the 900 figure is pulled out of their ass and more importantly b) it's more like 130 outside the US, mostly concentrated in a few countries – unless the meme is suggesting US military bases on its own soil are there primarily as a bulwark against socialism.
More importantly, though, as someone else pointed out: it's about hegemony generically. If US foreign military bases exist not to further US hegemony but in the interest of worshipping capitalism, why are there bases in Europe standing in defense of social democratic countries against – what has now been for decades – one of the world's most hypercapitalist shitholes? Genuinely what work are these bases doing to uphold specifically capitalism? Did I wake up in 1983? Is the 82nd Airborne on its way to Grenada?