I’m not around sefarim these days. I’ll get to it online.
Your right that the level of antagonism toward chassidus cooled off a lot after a hundred years. I was nitpicking. What you are thinking with the Amshinover, was personal to his activities and not opposition to his following and so on. I was talking about in Europe. Later eighteen hundreds.
Correct me if I’m confusing times and people, I recall that the Yismacha Moshe started out as a fierce misnagid.
I’m not so sure that the opposition really calmed. As much as there was too much crossover. And there was nothing to be gained by fighting. Also, there were more important fights for the last two hundred years. Along with too much infighting.