[1] http://www.latimes.com/local/california/la-me-drone-drugs-20...
[2] https://en.wikipedia.org/wiki/Narco-submarine
[3] http://www.usatoday.com/story/news/2017/03/16/us-coast-guard...
If you're just saying there is a drug problem, though, and you have different ideas about how best to stem the influx of drugs, I still don't understand how you are getting labeled a Trump supporter.
As sanddancer points out, simply building a wall does not seem like it would be a reasonable construction project nor accomplish much for the ultimate goals. Using a bunch of tech, from IR cameras on drones to other detection methods - including for underground tunnels - seems like a much more useful approach. And of course, not cutting the Coast Guard would be important to keep the flow of drugs as low as possible, too.