There is widespread concern that rising affective polarization – dislike for members of the opposing party – is exacerbating a range of anti-democratic attitudes, such as support for undemocratic practices, undemocratic candidates, and partisan violence. Accordingly, scholars and practitioners alike have invested great effort in developing depolarization interventions, and several promising interventions have been identified that successfully reduce affective polarization. Critically, however, it remains unclear whether these interventions reduce consequential anti-democratic attitudes, versus merely changing sentiments toward outpartisans. In this paper, we address this question with high-power experimental tests of two previously established depolarization interventions, one a correction of misperceptions of the views of outpartisans, the other an invitation to think about interpartisan friendships (total n = 4,512). We find that the depolarization interventions reliably reduce affective polarization, but this reduction does not reliably translate into reduced support for undemocratic practices, undemocratic candidates, or partisan violence. Thus, efforts to strengthen pro-democratic attitudes should target these outcomes directly, rather than following the current practice of focusing on affective polarization as a proxy. More broadly, these findings call into question the previously assumed causal link of affective polarization on anti-democratic attitudes.