According to that study, 23% approved of the statement "I approve hostile activism to drive change by threatening or committing violence". It's even higher if you only focus on 18-34 year olds.
Full report here: https://www.edelman.com/sites/g/files/aatuss191/files/2025-0...
By contrast, acts of bombings and other political violence were both more common and widespread in the 1970's and 1980's than now.[1] In those cases, people took great personal risks.
[Edit: removed Nepal, mentioned in other comments]
[1] https://www.dhs.gov/sites/default/files/publications/OPSR_TP...