I don’t care what muslims want.
Do you care that government wants in your marriage? Liberals want the same.
I mention that about Muslims, because there are a lot of people who are against Muslims setting up “their own law” within the USA, and applying Sharia Law. A lot of people want Sharia Law totally and completely banned.
As far as government “being in your marriage”’... I would be concerned about “informed consent” by people who choose to NOT have a legally-recognized state marriage (in other words, the same thing we’ve have for as long as I’ve been alive).
As long as the people fully understand every legal ramification ... and they accept them all ... then it’s their decision. That’s perfectly fine.