Not really relevant to the point, but https://www.politico.com/news/magazine/2020/10/01/political-...
That poll from 2020 shows republicans and democrats roughly equal on the question. It wouldn't surprise me to find that the desire for political violence goes up among those currently out of power, anyway.
Try this newer poll from last month, in 2025: https://today.yougov.com/politics/articles/52960-charlie-kir...