Do remember that immigrants aren't usually trying to start the same kinds of businesses as the "natives", small businesses make a lot of sense if you want to be

Do remember that immigrants aren't usually trying to start the same kinds of businesses as the "natives", small businesses make a lot of sense if you want to be able to rely on yourself and not an employer who might not appreciate that you're just learning the language, and if you're willing to make use of the labour of your entire family rather than just a breadwinner. If you're an immigrant there are small businesses that are closer to stable jobs and you can start immediately with your savings, whereas if you're a native the reason you'd start a business is because you're interested in that thing or you want to be an entrepreneur and grow that business into something bigger.