What are the benefits of immigration?

Immigration can make you more patriotic, right? That's good. After all the good results abroad, such as immigration agents, they suddenly found that everything was fake. On the contrary, various systems in China are very good. You will be more patriotic and know free medical care, but no one told you that medicine is used to treat you separately, but medicine costs money. Many countries in Europe and America spend a lot of money on medicine. It is said that all kinds of benefits in Europe are good and wages are high, but taxes can definitely make you doubt your life. Saving 2800 euros in monthly salary and tax is nothing.