No matter why you want to live in the United States of America, you will have to go through different processes to be legally recognized as a permanent resident. Fortunately for immigrants, there are many different ways to become a legal and permanent resident, but for many people the best option is to get a Green Card.
No matter how you feel about the current political climate, it is hard to deny that things are changing quickly. Since the most recent presidential election, new laws and orders have been made and the way existing laws and orders are enforced have changed. It looks like change is not going to stop any time soon, but there are some things that will probably stay the same: Constitutional rights.