The treatment meted out to the Anabaptists on the Continent of Europe was cruel in many respects but when one understands the situation at that time and the excesses of a number of Anabaptist leaders, especially those who refused to obey the authorities, then it makes the attitude of the Reformers more understandable. The Reformers had many enemies and the last thing they needed was the Anabaptist Zealots who, by their antics, were endangering the Reformation. Sadly, as often happens in such situations, the innocent suffer along with the guilty.
Needful clarifications Too many are caught up in the myth/fallacy of Baptist 'impunity', attesting them as not being part of the Protestant Reformation.
Most, if not all, of the early American Baptists were Strict Calvinist Baptists, which trace back their origins to English Baptists rather than to the continent Anabaptist mixed bunch, to which only the Menonites can, and that from a particular pacifist/Arminian group of European Anabaptists which actually emerged from the Reformation phenomena also. Thanks for these observations.