The legend of St Patrick driving the snakes from Ireland is today regarded as a metaphor for the expulsion of the Druids and their Pagan beliefs, but is there any evidence of actual expulsion/persecution of Pagans in Early Christian Ireland?

by Blackfire853
mimicofmodes

There is always more to be said, but you may be interested in this answer by /u/depanneur regarding the legend:

Is it true that Saint Patrick driving the snakes out of Ireland is actually a metaphor for pagan genocide? What are the origins of this story?

As well as the answers by /u/depanneur and /u/lonnbeimnech here:

A girl I know gets indigant every St. Patricks Day, because she believes that St. Patrick conquered Ireland and forcibly converted them, committing genocide against the Pagan druids who lived there. Is this claim accurate? If so, to what extent?