No, not racism! Possibly an insular way of looking at the situation, for which I would blame
a) the Govt, esp. Prime Minister Brown and his recycled fash-slogan from the NF (BJFBW)
b) Union 'Tops' for, since they're paid dues to look at the bigger picture and inform the rank and file what's going on in the wider world and make solidarity with other unions across Europe, nay, the World, for globalisation has been around for over 100 years.
We've got to look at it from the bottom-up, i.e. from our position as workers.
We've got to consider that it's only very recently that information about the world has been available to access to all.
Cars increased mobility and contact with other workers around the country.
Internet increases the amount of info available to us.
Before cars/internet and airtravel, information would be filtered from the top-down to workers, and workers would only be told what the Union leaders/bosses wanted them to know!.
Today, we're all better informed (thankfully) so we know when construction workers are striking in India, France, Germany, S.A., Brazil, etc and we know why they're striking!
We can find out which unions are involved in contract/agency disputes and work together. Couldn't do that very easily 30 or 40 years ago!