I'm Arab and supportive, and sometimes use it. The term isn't racist, there's no racial significance to it. They do prefer the term Ansar Allah and I think we should use it. While some use the term Houthis to delegitimize them, I have seen supporters use the term as well, it is named after their leaders, Hussein and Abdul-Malik al-Houthi.

I want to stress that we should use the official name, or simply refer to them as the government of Yemen, but it is wrong to assume that the term is purely pejorative specially when used here.