These people usually follow the same steps.
1. Deny there is a problem, it's all lies and propoganda by the "far-right". Basically the equivolent of putting your fingers in your ears and going 'la la la I can't hear hear you'
2. When the evidence is too great and/or the situation to serious to be ignored, play the blame game. Foreign policy, poverty, racism, social isolation etc. Bascially it's all our own fault in some way, we asked for it.
3. Whataboutery. Classic defelection tactics, usually something Christians have done, particulary The Crusades (depsite them ending over 900 years ago lol) are bought up here. Also, according to liberal logic, the fact we already have rapists, murderers and various other criminals of our own, is a perfectly valid reason for not restricting the migration of such people, or even complaining about them coming here in the first place.
4. Conspiracy theories. Getting desperate now so time to bring out the crazy. It was the far-right boogeymen disguised as Muslims, an inside job/false flag of some sort and so on.
5. Name calling. Last but not least, when all else has failed, the argument is lost, the debate is over, call people racist, bigot, nazi, xenophobe ect.