I don't understand what you mean. America executes thousands of their "lower classes" each year as well as part of the criminal justice system. Doesn't mean that it is systemic "cleansing". You need to have better sources if you believe that is what China is doing.
And the reason the entire world dislikes Israel as a country (as of the latest world popularity ranking) is due to its one-sided, selfish foreign policy and this ridiculous "anti Israel = anti Jewish" position many Israelis take. When everyone is sick of it you shouldn't be surprised if many academics are too.
Meanwhile your "world popularity ranking" index ( whatever and however that is conceived to measure ) and Israel's bottom ranking in it, needs a citation.
However, the US does prevent many people from reproducing, by locking them up. Its incarceration rate is the highest in the world (0.7%, compared to under 0.2% in China).
And the reason the entire world dislikes Israel as a country (as of the latest world popularity ranking) is due to its one-sided, selfish foreign policy and this ridiculous "anti Israel = anti Jewish" position many Israelis take. When everyone is sick of it you shouldn't be surprised if many academics are too.