Let's add around 5 million for man made famine, and probably a 2 million for arbitrary executions and deportations, while many estimate the full death count as between 15-20 million
As far I can understand the top range of estimates for CECOT, which is a non American facility, are that 500 died, of around imprisoned 20,000 inmates. So the scale is a bit... different
I think the issue here is that contrary to popular belief, not every wrong thing is the same