Could an IT strike be a reality in the UK?

In Sao Paulo, Brazil, leaders representing both the IT workers and their employers are locked in a room as I write this, trying to reach an agreement around what could be the country’s first “technology blackout.”
The IT workers union for the Sao Paulo technology workers, Sindpd, is not happy because its demands for a 11.9% linear salary increase and benefits such as meal vouchers and profit sharing plans have been rejected by the employers, represented by the Seprosp union. 
A strike was due to commence on Friday, but the labour ministry has called both Sindpd and Seprosp to reach a solution for the dilemma by tomorrow. If the bargain offered by the employers is not accepted, the matter will be taken to court and workers will go on strike. 
The vast majority of 500,000 technology workers currently active in Brazil are based in Sao Paulo, meaning that a strike would be inconvenient for the companies to say the least. But the president at the Sindpd workers union Antonio Neto doesn’t seem too phased about that.
“Look at the money involved in M&A [transactions involving IT companies] and the resources they are putting into expanding their businesses. The workers have made that money for them and that should be recognised,” Neto told me in an interview. 
Brazil is growing immensely, so employees feel it is right to get a slice of the profits pie already enjoyed by their bosses. Meanwhile, the average British worker is largely happy to have a job, so I find it hard to imagine that such protests and demands for little luxuries such as meal vouchers would ever be a reality in the UK in this recessionary times. Am I wrong?
Also, this raises important questions about the perception of the country as an outsourcing destination. If you are an IT chief looking to shift work overseas, would you go to a place where the workforce is unionised like this? What do you think?