Fear is an interesting thing isn't it , it seems that the media and political parties in recent times has taken a vested interest in ramping up the fear levels in this country , especially wrt the so called indigenous population ( natives I think someone elsewhere on this thread referred to them as ).
It is not unique or confined to the UK at all, to say that a countries media outlet are just ramping up the countries natives fears is dismissing the polarisation of politics in general, we have a fairly balanced press and yet all sides will jump on any crime and fudge statistic etc to score political points.
As an example, take the russian interference situation in America. Everyone knows russia shitposted which may have helped him win the presidency (how far up it actually goes is what some are clinging onto), but at the same time it is proven that Russian bots where shitposting in support of activist movements like BLM and AntiFA
Equally, Cambridge Analytica, when Obama utilised the exact same strategy it was seen as being groundbreaking and reaching potential candidates in the 21st century, if the SNP or Milliband used them (as they both wanted to) it would still be seen in that limelight, as they ended up helping out a controversial leave vote it is looked at completely differently
Polarisation is the issue, when people think its quirky and fun to say they could never be friends with a tory etc you know that propaganda is working across the board