His latest tweets backed up by academic studies:
* Borders, not multiculturalism, reduce violence between groups.
* Non-Western immigrants in Oslo committed every rape between 2006-2010.
* Black men in London are only 12% of the population, but commit 32% of rapes.
* Non-white transsexuals are four times as likely to be unemployed as the general population.
* Young Black men kill 14 times more often than young White men.
