I don't doubt that there are some employers who are as much to blame as recruiters but I firmly believe that in London at least, most tech companies would be as

I don't doubt that there are some employers who are as much to blame as recruiters but I firmly believe that in London at least, most tech companies would be as open to a non-UK candidate as they would to a UK national. The point I was making is that racism and ageism are rampant purely because it's easier to sell UK based experience than it is to sell foreign experience whereas anyone who truly understands the technicalities of what the candidate has achieved in their career would pay no attention to the geographical location of said achievements. Call it passive racism if you prefer.