Alright, I'm going to bite, given how so far I don't think anyone has pointed out the blindly obvious here: It's bad enough it's an oil company, in terms of the tens of millions of deaths the industry will have on its hands due to fossil fuel-driven climate change. But it's not just any oil company; it's the oil company that, for the past two decades, has propped-up one of the most brutal governments on earth.
From a moral standpoint, I'd argue the ongoing display of the Citgo sign is quite reprehensible, and only just slightly less repugnant than if, say, in 1942, a giant billboard advertising Krupp stood over Fenway. But, hey, "tradition" and "iconic," right?
I mean, I can't disagree, but we also do still have the legacy of Krupp (now ThyssenKrupp), Volkswagen, Mercedes-Benz, the Associated Press, Ford, Adidas [neé Dassler Brothers], IBM, Hugo Boss, Chanel, DuPont, and many others who were compliant + complicit with Hitler's Nazi regime, all in the name of commerce. And the world goes round.
I like the Citgo sign, as a landmark I've grown up with, but if it's time to take it down and send it back to Venezuela, I'm good with that, too. Just seems like the Citgo sign is one very odd, arbitrary insignia to cancel when all these other corporate overlords (maybe) have behaved way much worse in the wartime years with no real consequence of their actions that resulted in the horrific death of millions.