One relevant quote:

Researchers found that one-third of Republicans support violence as a means to save the country, compared with 22% of independents and 13% of Democrats. And more specifically, Republicans who have favorable views of Trump were found to be nearly three times as likely as Republicans who have unfavorable views of Trump to support political violence.

People on the left tend not to think of themselves as “true American patriots.”

The question that really needs to be asked is one capable of meaningfully distinguishing between those who support "resorting to" offensive violence in order to "save" the country from policy they don't like that was accomplished through legitimate means, and those who support legitimately resorting to defensive violence to save the country from the first group.

Good luck crafting such a question in such a way that the first group doesn't misrepresent themselves as belonging to the second, though.