Do you mean Oliver Cromwell???
The Scottish nationalists aren't against a centralized, intrusive government. They're socialists. They think the UK isn't socialist enough, and they have that whole left wing "national liberation movement" thing going on. Plus they want to submerge Scotland into the EU.
What is it with so many conservatives that they can't believe there is such a thing as white left wing nationalism? Where does this freaking Celt-worship come from?