Some issues have gotten confused. There were buoys that texas floated in the water. A few drownings went on around them and they were ordered removed. There's some international law there. I'm not sure how much razor wire was in their construction, but it was definitely a safety hazard

The razor wire is another issue, and the ruling for it is really the bare minimum and appears to be misrepresented by the right. Texas had been putting it everywhere for years. This was not an issue for the federal government in most situations. However the federal border patrol has to do their job (regardless of the fact the right pretends they don't to smear political rivals). If they see something on the other side of the razor wire that requires their attention, they need to get to it. To do that they cut the wire to get to the otherside. Texas, not wanting to have to replace the wire everytime, sued to make them stop. The federal government basically argued blocking them was obstructing justice and other official business(including things like rendering medical aid). Courts have found on the federal side. Texas is trying to ignore it. If someone is on Texas' side you can always accuse them of obstructing justice. They kind of are in cases where there is actually justice to be done. In other cases they are just sadistic.