there are many better and more effective ideas for border patrol than a really big wall
yeah but a wall is part of the equation. you can seriously just cut a hole in a fence and crawl through. besides, I doubt Annoying Orange would just have a wall built and leave it at that considering everything he's said about border security.
the same reason gun and drugs laws dont work. if someone wants to cross the border, they're gonna find a way to do it. unless you want to go all out with 2 meter thick, 10 meter high/3 meter underground concrete all along the 2 thousand mile border with electronic sensors to detect anyone nearby, people are gonna get across. not to mention that building a 2000 mile long impervious wall would cost stupid amounts of money and time for questionable results. i'm all for real border laws, but stopping illegal immigration is more than building a wall.
if you really wanted people to stop coming into the country illegally you'd have to make moving to america seem like a really stuff idea (harsh illegal immigration laws, for example)
This isn't really comparable to gun and drug laws. by establishing a wall instead of a fence, you already make it harder to cross the border, which will in turn discourage at least some from trying to cross in the first place. that too also depends on the lengths that are gone to to make the wall secure. The wall Annoying Orange envisions costs $8-12 billion dollars, which is about on par with the usual daily government spending. ($6.85 million per minute). The price isn't really that important in the long run, considering everything that will be put in place to stop losing money to Mexico, which will also itself discourage illegal immigration.