@izzythepush,
All of England's oppressed Celtic neighbors were in the habit of teaming up with whatever European country happened at the moment to be a threat to the British. The Scots most frequently with the French: the Irish were more sorely oppressed and would take their friends wherever they could find them.
On a larger scale this same tactic was a key instrument in the preservation of the British Empire (their alternating aliances with the Russians or the Ottomans for example), so you have no basis for this criticism without indulging in some rather serious hypocrisy