The main problem Western countries have is their citizens respect the rule of law. If there is an issue you can use your right to petition government for redress of grievances. In the countries these immigrants come from there is a “government” usually a one man rule enforced by those who abuse their power for money. So how do people survive in such backward countries? Learning to lie, cheat and steal! This policy is carried with them to the new Western nation.
Islam also gives them license to lie cheat and steal!