Alot of that is a 19th Century nationalist semi-fabricated (only semi-fabricated, mind you) hogwash made up by our great patriots to fit into the "great national struggle of the MONE people (Most Oppresed Nation on Earth) against British Imperialism, blah, blah, blah"..
Yes Cromwall did commit plently of massarces of course, though never on scale of our invented histories. The actual historical states that generally only the garrison were killed in the towns captured - after they surrendered while fighting having turned down an offer to do so at the start of the siege, which were the normal rules of war at the time (not that I justify THAT mind you). The massarce of Drogheda, et al being somewhat of a myth.
I don't think the argument that yes there were 'massacres', but they weren't really all that bad, plays all that well...
I can't think of any people who committed or orchestrated any massacre, whom I would classify as a 'hero'.
Of course there was the radical (well not that radical really; not after the Ulster Plantation) distrubtion of the land towards the Protestant landlords, many of which would keep their estates until the Parnell era and yes they were bad things and evil for the country (I have Michael Davitt in my sig; so that should tell you my opinion on them ffs.) but in reality for the majority of Irish people just replaced one repressor with the other - Cromwell had pretty much destroyed the Norman-Catholic aristocracy which was why he such got bad rep here, but our "more Irish than Irish ourselves" aristocrats were just as good at oppresing Irish people as a matter of fact; and were often diehardly conservative and supported the Medevilist Catholic church - then the enemy of all knowledge and enlightment (sorry Catholics, but it's true) and certainly never have warmed to the whole "parliament" idea.
Again, the he wasn't
that bad argument doesn't sell me here either.
The Cromwellian plantation was not a good thing, IMO. Catholic ownership of land here fell around 90%. Significant sections of the population were forced to leave their land to move to the most unproductive lands in the country.
The Act of Settlement also is not something I would want a 'hero' to bring about.
Whereas the Parliament of England, after the expense of much blood and treasure for suppression of the horrid rebellion in Ireland, have by the good hand of God upon their undertakings, brought that affair to such an issue, as that a total reducement and settlement of that nation may, with God's blessing, be speedily effected...Even if one believes he was
only replacing one set of oppressors with another, then the requirements to meet the status of 'hero' have really slipped.