Its easy to answer if you're not a leftist. 60% of convicted rapists are migrants, who have been in Sweden less than a year i.e. came with the 250K let in since 2015 (https://www.dailymail.co.uk/debate/article-6145093/ROBERT-HARDMAN-Sweden-lurching-Far-Right.html). Add mass car burnings by Muslims a la Paris 2005 and the picture is complete.