Faeelin
Banned
The Cromwell hate, I think, is down to a very successful villification campaign by the Establishment, starting with the Restoration and never really letting up since. Cromwell's memory represented an existential threat to the very basis of the nation, so a major effort was made to tarnish his reputation. It's no coincidence that the version of Cromwell that's percolated through into the national consciousness- A tyrannical, dour Puritan who banned Christmas- fits perfectly his portrayal in contemporary Royalist propaganda. By 1660 it suited nobody to remember Cromwell fondly; the Restoration provided an opportunity to draw a firm line under the troubles of the past few decades, and nobody wanted to turn over that particular stone again for fear of what lay beneath.
This somewhat reminds me of the early German view that Hitler was this unique, magnetic individual who tricked Germans into following him, and so let them absolve themselves of guilt.
Hrm.