Dreadlocks have been worn throughout history by people of every skin color on every continent. It’s what hair does when you don’t condition it or oil it or brush it (and yes, you still wash it), and then you roll it to form strands rather than a mass. Some Native American tribes wore them, Africans of course, the Norse, Hindu mystics in India, and Aboriginal tribes in Australia as well as many others.
It’s true that the contemporary fascination with locks largely stems from Rastafari, a religion with ties to liberation theology as well as pan-Africanism and black nationalism. Some white college kid who likes to smoke weed and speak in a fake Patois is obviously appropriative, not to mention an asshole.
But don’t forget that the Rastafari are using the Bible as the source for their teachings. And what parts do their specifically cite for their customary wearing of locks? Leviticus 21:5 and Numbers 6:5. That’s Old Testament. That’s the Torah. This is why the Nazarite have long forelocks, which they often allow to form dreads. Dreads are old. I hear you on the appropriation tip, but I’m pretty sure the Nazarite, who have been doing this for thousands of years, didn’t even invent dreads. (And there are many things more interesting and more important about both Rastafari and the Nazarite than dreadlocks.)
So hey human family—history is complicated. This white guy with dreads is actually a jewish guy with dreads. You don’t have to like it, and I don’t care if you do. But if you’re so anxious about anti-colonialism learn some history, and save if for the guy in the pot leaf tank top claiming to be the Lion of Judah. Or the person wearing the Native American headdress. Pretty sure there’s no historical caveats there.