It was interesting to watch the interplay between you and muzungu. He is attempting to engage you in the question about whether the brexit vote might actually be caused by concern about a very large number of immigrants/refugees coming into England rather than due to racism. You engage him in semantics about what words he uses mean instead of conducting a debate about the context of his comments. You state that he has repeatedly lied and engaged in fallacy when he may have used some words in a way that might be construed to be contextual in his use rather than literal. You take him to task for a literal use of the words. You say the effect is temporary and in any regard the presence of such a huge influx of people will, over the long run be beneficial. That might be true in 10 to 15 years but at the moment, it is a huge expense and strain on the current populace, not to mention a detriment to current cultural experiences. It is quite possible, also the reason for the brexit vote.