This idea of moral equivalence is popular and extremely dangerous. It is what Trump expressed as "you think we're so innocent?"
No countries are purely altruistic, but there is a big space between pure altruism and simply being exploitative. This ignores the role of norms in foreign policy. For example, think of how the US attitude to the Taliban was (and still is) conditioned by the differences in their beliefs about women in society.
If you think it doesn't matter whether America or China is in charge, you will be in for a shock. These countries have deeply different values, and their foreign policy will express that. I note also that you didn't mention Russia. I think it is obvious that Ukraine is not indifferent between being "exploited" by Russia and by the US.
No countries are purely altruistic, but there is a big space between pure altruism and simply being exploitative. This ignores the role of norms in foreign policy. For example, think of how the US attitude to the Taliban was (and still is) conditioned by the differences in their beliefs about women in society.
If you think it doesn't matter whether America or China is in charge, you will be in for a shock. These countries have deeply different values, and their foreign policy will express that. I note also that you didn't mention Russia. I think it is obvious that Ukraine is not indifferent between being "exploited" by Russia and by the US.