Dimag kharab, you are concrete like always. That's it. When you come on student visa, you have told in the interview that you will go back to your country. So there is no provision in this visa neither will be in the future. For opportunities you need to upgrade to h1 or other immigrant visas, and it is easy if you wish to. So, I see no point in complaining. When you don't have a vision and plan, you end up getting nothing and only thing left is to complain. Grow up, do sth.