I agree. They've NEVER had a distinctive/exclusive use of "urban homestead" OR "urban homesteading". Not in the last 5 years. Not ever.
They're tools, they're greedy, and honestly... at this point, I wouldn't care if they came back and said that their attorney had a gun to their collective heads and forced them physically to defend themselves, or to create the trademark to begin with. I'm done with them, and I hope their business falls so hard, it's incapable of ever being revived.
Use that to pay your bills, Jules.