Immigrant slanders who don't love their own country

Immigration is really unnecessary. China's national conditions are more suitable for China people. Different cultures. I don't think it's necessary to give priority to my career and development, if it's just an immigrant life. As for the reasons, our development can explain everything. The environment, culture and economy in foreign countries are not necessarily better than those in China, but as China people, we may be treated unfairly. As for science and technology, there is a big gap compared with developed countries, but now with confidence, the gap is narrowing.