As part of my job I travel out to west Texas fairly often. If I take US 90 to get there I hug the border for about 150 miles of the drive. I've been doing this for years now and have never had any issue. I have never seen a caravan or a cartel. They may exist somewhere, but not here.
What I do see are dozens of Border Patrol vehicles. What I do see is a government agency doing their job to keep the border secure.
What I don't see is a national emergency.