"Christ is king in this country. We don’t want illegal aliens from Mexico or outer space. So let’s tear this bitch down."

Says the man in the video that I found through Vice, which says "Mysterious Monolith Update: Racists Destroy California Monolith, Proclaim Christ Superior to Space Aliens/A group of men shouting 'Christ is King' and 'America First' destroyed a new monolith and replaced it with a wooden cross."

Notice that this was not the Utah monolith that we were talking about recently. It's a different monolith, in California. And I don't know how to tell whether these are real racists or pranksters. To my ear, the words I've quoted in the post title seem like a joke, and who would make such a joke... while tearing down a dumb sculpture in the desert? 

Vice calls them "a group of right-wing young men."

In a video [no longer available] posted to a DLive account run by someone with the username CultureWarCrimnal [sic], the group of men claims to have driven for over 5 hours to get to the statue’s site.... [One man is v]aping while saying things like, “I will fuck you to death if you don’t sing.” The group goes on to sing "Battle Hymn of the Republic" and other military-centric songs, all while greeting his viewers with vulgar, racist commentary. 

Two other members in the back of the car have combat helmets on with night-vision goggles attached. Throughout the video they mentioning burning crosses and white power....The person with the camera claims someone is setting canines after them—no barking is heard. Shortly after, voices can be heard getting closer to the group. A person yells, “grab the cross and beat them with it.” CultureWarCriminal and his crew then have an impromptu roundtable discussion in the bushes, contemplating if those pursuing them are a part of the Antifa movement. “Antifa isn’t one to underestimate,” the group concludes.

Not underestimating Antifa, I will say that this whole group could be Antifa, performing a false flag operation. If so, they are at that point bragging about themselves.  

They then devise a plan, seemingly getting excited using military vernacular, to call the police and frame those after them as the monolith destroyers.

If the destroyers are Antifa, which would mean that they had devised a plan to frame right-wing racists. But Vice links to a Twitter account called Culture War Criminal, so you can assess the ideology and the seriousness of it all for yourself.