Is it reliable to buy a green card for overseas home buyers?

In fact, the expression "overseas home buyers buy houses and send green cards" is misleading. The real meaning behind it is not to buy a house, but to encourage investment and immigration policies. The green card must be issued by governments all over the world, so no developer or real estate agent can guarantee to issue you a "green card", but the one who dares to promise to issue a green card must be the government's investment immigration policy. For example, immigrants who invest 5 million yuan can get a green card, a certain proportion of which can be used for real estate investment, and the other part can be used for investing in bonds formulated by the government. At present, investment immigration policies in most countries are like this. This kind of project is led by the government, but the specific implementation operation is carried out in various commercial institutions such as immigration agencies and housing agencies. The profit points of these institutions are all on real estate sales commission and financial products sales commission, so the focus of publicity is "buying a house" rather than "immigration", so the interpretation of the above investment immigration policy has changed from "opening the green card for investment immigrants, including real estate projects" to "buying a house for a green card".