“…Previous research has shown that some psychological dispositions that were hypothesized to underlie extremism are in fact predictive of certain ideological contents. For instance, the need to reduce threat and uncertainty, which was thought to drive all kinds of extremism (e.g., Hogg, Meehan, & Farquharson, 2010), is in fact related to right-wing ideologies (Jost et al, 2003;Jost et al, 2007) and right-wing radicalization in particular (Frischlich et al, 2015;Pauwels & Heylen, 2017;Rieger et al, 2017). Similarly, research indicates that there are substantial sociodemographic differences between left-wing and right-wing activists (Chermak & Gruenewald, 2015), suggesting that research should focus on the individual determinants of right-wing versus left-wing radicalization.…”