Simple as that the rich countries want to ensure they are well off. That is naturally.
Look at Africa, India, South America, etc for decades they are trapped in a system that prevented them from having a decent life.
Now there is a newcomer that bring changes and give other the same oppurtunity. For example Africa is starting to do better, under the old system of the west they are being suppressed. So no surprise. Especially US it is acting very sanatic and strange. They used to be doing thing for grace. They are heading the sanatic route. India is because they felt they are always better than China. But reality proof the opposite hence they became delusional. Well that can be to a certain extend be excused because majority in India is illeterate. But US case is strange for them to behave more and more like the Indian, mentality???