My problem with this sort of thing is as a white British male if I make any comment or voice an opinion about any non white British person or group of persons I am considered non PC or 'racist' (a word I actually detest that is bandied around too much IMHO), however if any non white British person wants to hurl abuse/accusations in our direction it is considered acceptable by the apologists and no one bats an eye lid, as to do so is also considered non PC or racist and it is then us that is against 'integration' and acceptance, it is all one sided in my opinion.
The only way to avoid stepping over this imaginary line in the sand, as it is virtually impossible to have an opinion that won't upset someone, is to stop communicating in public, it is probably the safest way these days.
The indigenous people in this country have been virtually cleansed of free thought and opinion in public, something that we keep saying we fought wars to protect that freedom of speech, yet don't practice what we preach and I do understand what is not acceptable in polite society as I was brought up to respect all people, however I don't believe having and voicing an opinion/concerns about another ethnic group is wrong especially when there is a lot of justification for those responses, especially as has been stated above, these same groups can abuse and say what they like about me with a freedom I apparently don't have in return.
I assume that the stabbing incident because we are now bombing in Syria, will be turned around by the PC lentil eating apologists as being justified and ok, but god forbid a white British person retaliates the same way because of all the mindless killing of westerners going on by ISIL.
It will now be interesting if this little rant will upset the apple cart, and if it is then so be it I will retire nicely.
As an aside one of the worst cases I witnessed of racism was a white South African SNCO at a mess do with strippers, who took exception to the young black girl who was one of the strippers in question and he said something to her in the bar after and she reacted by throwing a drink in his face (deservedly so in most of our opinions), his retort was to shout at her that if he was in Africa he would kill her for less, we were absolutely gob smacked.