No, he didn’t; the only violence he urged on anyone was to put down rebellion. He went completely over the top there to our views today, and indeed what he unleashed shocked even a good number of contemporaries. As for ‘heretics’ he grudgingly approved the death penalty but only for those who disturbed pubic order. The worst was in a statement written by Philip Melanchthon who pretty much redefined threats to public order –
“even the passive action of the Anabaptists in rejecting government, oaths, private property, and marriages outside the faith was itself disruptive of the civil order and therefore seditious. The Anabaptist protest against the punishment of blasphemy was itself blasphemy. The discontinuance of infant baptism would produce a heathen society and separation from the Church, and the formation of sects was an offense against God.”
and proceeded to define any threat to public order as sedition, which was how he got Luther to go along.
No – that’s projecting our understanding backwards. In the sixteenth century the concept of the church was thoroughly geographical; the idea that subjects of a given ruler could “belong” to different “churches” was horrifying to almost everyone. So when Anabaptists led a revolt that took over the city of Munster, declaring it the “New Jerusalem”, doing away with private property, smashing images in churches, made it a crime to not be re-baptized, burned all books except the Bible, legalized polygamy, imprisoned any women of childbearing age who did not promptly get married and/or who did not submit to sex on demand from their husbands – and when many women decided that living in a women’s prison was preferable to what amounted to slavery, enacted a law saying that rather than being imprisoned such women would be executed, and more, every person of authority in Germany demanded the rebellion be put down. The most advanced concept of religious freedom to date – cuius regio, eius religio, “whose realm, his religion” – was thus upheld.
Rabbit trail: This principle had two results down the line. First was that, given how many different principalities there were in Germany, people became accustomed to having neighbors of a different religion (especially after the principle was extended to include the Reformed) ; second, after a time, when two principalities with different churches merged rather than abolish one rulers demanded the two fashion a union (enforced by law of course)(fast forward to Napoleon for the widespread implementation of this when he reduced the numbers of German states/princedoms from scores [I’ve read there were nearly two hundred] to just 39) – and as these unions tended to be in name only, the modern phenomenon of multiple churches in one nation-state began to emerge.
At any rate . . . Luther continually returned to the position that only active rebellion/sedition or attacks on people and/or property (such as trashing churches) should be punished.