I do not believe this in the slightest bit, every time there is an act of violence there is an excuse. Killing specifically with the intent to convert is an act of genocide in the name of religion. You do not see Communist doing this or sousing atheistic ideology, primarily because no ideology is the basis of atheism.
On the other hand you have proselytizing as the basis for the acts of Christians and Muslims.
Also Christianity was not spread through Northern Europe peacefully for the most part after gradual cessation of the Roman Empire
I was not excusing the Lawbreaker's actions. I curse his name as much as any one. But from what I've seen of Northern Europe's history, the bulk of
successful conversions of various states to Christianity was done peacefully. I'm most prominently of Irish descent. While I don't celebrate St. Patrick on the day that bears his name because he basically destroyed the last semi-intact Celtic culture not tainted by Rome, I don't curse his name because he did so relatively
peacefully. Heck, the Irish were more keen on killing
him than he was on killing them.
Even the so-called "Burning Times", the common Pagan conception of which I regard as more myth than history, didn't really happen until the Protestant Reformation and Spanish Inquisition. That was NOT a time to be living in Europe. Even still, witch-burnings were generally limited to the areas that correspond to modern day Germany and Eastern France. England, for example, has on record only 4 witch-burnings from this time period.
And if you think Communism didn't spread by the sword, brush up on your history of Stalin's Russia. Sure, it wasn't to espouse atheism specifically, but that doesn't matter.
Beyond that, I'm a bit confused. Do you actually believe a message or social system can be formulated that's free of any potential for corruption?