There is a fundamental right to strike in the EU. The UK is bound to the EU legislative process.
An interesting, and carefully worded comment there. I note that you do not claim a fundamental right to strike in the UK, and equally, the UK is not bound to all parts of European law, or indeed all parts of the legislative process - something that may become even more interesting should the coalition go ahead with its idea to re-assert the primacy of Parliament within the constitution.
This is another area where lawyers suck their teeth, call it a fascinating case and mentally start riffing through which Lamborghini they want next.