This study delves into the ideological alignment of partisans, a phenomenon of some beneficial and multiple troubling consequences within European political landscapes. I hypothesize a substantial asymmetry in ideological alignment between partisans on the left and right ends of the political spectrum, with profound implications for our understanding of political polarization and party strategies across Europe. Utilizing conventional methods and innovative belief network modeling, I analyze data from the fourth and eighth waves of the European Social Survey (2008, 2016), supplemented by the Chapel Hill Expert Survey and Manifesto Project, covering 15 European countries, 131 political parties, and 23,586 partisans, to test this hypothesis. My findings reveal that supporters of new left parties exhibit a more consistent and coherent set of beliefs compared to their right-wing counterparts. However, the study also uncovers the limits of this asymmetry in a significant shift in ideological alignment on sociocultural issues on the right, indicating the emergence of a deeper, broader ideological conflict. Furthermore, my analysis demonstrates the limited impact of strategies like position blurring and programmatic nicheness, showing only a small effect on ideological alignment in economic matters. These insights highlight the propensity of new left supporters for some worrisome consequences of high belief homogeneity, such as echo chambers and lack of cross-cutting ties, and stress the pivotal role of both the new left and the radical right in the ideological conflict across Europe.