I don't like Muslims but from the point of view of justice, I understand that the decrees which publishes Trump really have nothing to do with the law. Therefore, their courts and overturned.
What Trump did was entirely lawful. However, the judge found some minor loopholes and used them to suspend the order. This happens every now and then. But don't rejoice too much. He is preparing another executive order, this time without any loopholes.
Trump will not be able to deal with such a large opposition against him has teamed up with the Republicans who also do not support it. It seems to me that Trump won't last until the end of his term.