The English do NOT rule Scotland, Wales and Northern Ireland.
Those 3 (and also England) are ruled by the British parliament in Westminster, which is not the English parliament. If anyone's oppressed, it's England. England doesn't have a parliament, unlike Scotland. And even if it was the English parliament, then what the hell are Scottish, Welsh and Northern Irish people doing in it? Get out! It's the ENGLISH Parliament! The English aren't allowed in the Scottish Parliament or the Welsh Assembly.
Either you acknowledgethe fact that the English don't rule Scotland, and the fact that Scotland has its own parliament and England doesn't is unfair and undemocratic, or you believe that England rules Scotland, in which case you should try and persuade the government to kick out all the Scottish, Welsh and Irish MP's out of ENGLAND's Parliament. Or, maybe let English MP's sit in the Scottish Parliament.