Do you really support a presidents power to set policy based on say hair color? Height?
It's not a question of whether a policy is racist. A court simply doesn't have the authority to set or curtail international policy.
I support a President's power to set policy because the President is an elected official. If his policies suck then they'll get changed by the next guy. The courts aren't elected and they sit until they're dead, so I don't think they should have veto power.
Those are the real issues but to answer your question: Yes I support a moratorium on Muslim immigration. I have other ideas that Trump people wouldn't like, such as leaving the Middle East completely and issuing an apology to the entire region for killing them wholesale.
Your hair color/height comparison is a poor one as presented. How about if blond people who are 5'11 won't accept the law of the land over their own blond 5'11 laws and the overwhelming majority of terrorist attacks are carried out by blond 5'11 people? Think maybe we'd be wise to look real close at blond 5'11 people before letting them in?
It's nice to be nice but you don't fuck around when it comes to security. There's a direct correlation between Muslim immigration and deaths caused by Muslim immigrants, and the US doesn't need that.