It is important not to confuse correlation and causation though (I mean even if your speculation that most insecurity* comes from immigrants was true).
Also EZ have made it very clear that he doesn't have that much problems when immigrants are white and christian (even recently when discussing immigrants from Ukraine) so it's not like he is really hiding that everything he says about immigrants is really about non white and Muslim people.
* Not exactly sure what insecurity means exactly. I feel it's often used to mean "the feeling ignorant people have when they see foreigners" in which case you might be right :)
Also EZ have made it very clear that he doesn't have that much problems when immigrants are white and christian (even recently when discussing immigrants from Ukraine) so it's not like he is really hiding that everything he says about immigrants is really about non white and Muslim people.
* Not exactly sure what insecurity means exactly. I feel it's often used to mean "the feeling ignorant people have when they see foreigners" in which case you might be right :)