First, in terms of political factors, the group with high authoritarianism scores has stronger beliefs in conspiracy theories than the group with low authoritarianism scores, and this difference is statistically significant (F-value = 4.533, p-value = 0.033). Ideologically, conservatives have stronger beliefs in conspiracy theories than progressives do, which supports the results of Hart and Graether [29]; this difference is also statistically significant (F-value = 14.635, p-value = 0.000). The degree of belief in conspiracy theories varies depending on whether the respondent supports Moon’s government. Beliefs in conspiracy theories are stronger among the group that does not support Moon’s current government (F-value = 150.362, p-value = 0.000). These results confirm those of Uscinski and Parent [20]. Additionally, supporters of the current ruling Democratic Party do not tend to believe conspiracy theories (F-value = 17.904, p-value = 0.000). The group with a higher degree of religiosity indicates stronger beliefs in conspiracy theories than the lower group does (F-value = 3.511, p-value = 0.061). Buddhists tend to have the strongest beliefs in conspiracy theories, followed by Christians, non-religious people, and Catholics. Buddhists may have stronger beliefs in conspiracies because the majority of them are conservative elderly. However, the differences between these groups are not statistically significant (F-value = 1.086, p = 0.354).