So you admit you'll need to include India, until recently (and in large parts to this day) a 3rd world country, to bolster your count for your argument to work. That's... Not an "eh" kind of thing, that's shooting your argument in the leg. You need to use simultaneously one of the poorest nations (at least historically) AND the second most populous in the world to justify your assertion.
And what would the Indian death count have been like if India was a Communist state?
It's an easy question to answer, since we had cases of a single country (and thus with the same potential) divided into Capitalist and Communist halves before.
So care to wager which one was fed better, FRG or GDR? RoK or PRK?
DPRK Until 1991 (realistically though DPRK kinda lost the plot in the 70's when the tech boom started), at which point it then had an economic collapse and associated famine which caused Kim-Jong-Il to turn it into some sort of weird pseudo-monarchical dictatorship thats also trying to be third positionist and is also not communist anymore except it is when dealing with china?
Suffice to say Korean history is weird.
As to the rest, yes I include india because it lost something on the order of 4 million people a year for much of the twentieth century to avoidable causes. Much like how I include China because my god Mao couldn't run a country to save his life. (If I want other nations with death problems I can use tsarist russia, Ethiopia, Sudan, Somalia, Congo, for famine and nations like Spain, Argentina, Chile, Brazil, Uruguay, Paraguay, Columbia, Honduras, Nicargua, the USA, Portugal, Indonesia, South Vietnam, South Korea, Thailand, Malaysia, Pakistan, Iran, Greece.... and so on for deaths simply caused by authoritarian measures in capitalist countries)
But for the communist thing with Allende, the simple problem for comparing him to the Soviets or China is that he was democratically elected and accountable, and appeared to be respecting such. I find communism in general to be to atheistic and vulnerable to excess corruption, but if Allende had managed to complete a successful term in Chile things might have changed for the better. Pinochet did more than overthrow a man he threw a wrench into the idea that democratic communism would work for almost twenty years, because the message sent was "even if you succeed in winning inside the system, the system will just overthrow you anyway".
And funnily enough though, I despise soviet style communism for being undemocratic.