the main reason to build a wall is because mexicans commit twice as much crime as white people. the thing is, that statistic is the same for both legal and illegal immigration. so, isn't it necessary logically that you would limit legal immigration if you are willing to build a wall?
i dont view the job stealing and drug things as practically good factors in building the wall. if we really wanted to top illegals from stealing jobs, we would just enforce the rule against employers who hire them. drugs will find a way to get into the country around the wall or smuggled in theorugh legal ports. in fact, eighty percent of drugs come through those ports and it would only take around a hundred million to implement scanners to catch much of those drugs. a far cry from the billions necessary for a wall.