It's not a stunt. If this was actually planned, then it would have been planned to have the most impact by having them arrive at the border before the election. As is stands the election is tomorrow, and the caravan is barely on the news at the moment.
Also it's the second caravan, the previous caravan also was formed without any election. These things get formed on social media on a whim and people just get on board.
I don't think these folks should be let in. We have no responsibility to save all of the poor of the world. You can walk in any major city in the US right now and you see homeless people living on the street. How can we justify letting more poor people in?
And more importantly, how is it fair that these folks could be let in, only because they can walk to the border? At this very moment, there are thousands of poor people in Africa and Asia that want to come here too, and yet they are filling out an application and following process. A chance to come here should be equal to everybody, and thus you should follow the process to keep it fair, not just walk to the border and jump a fence.
If you go to motor vehicle office, you walk in, fill paperwork, stand in line, pay fees, wait your turn. How would you feel if you saw people walk in, go to the front of the line and simply get handed what they want? Not fair.... get in line and follow the process.