The arXiv preprint by Omelchenko introduces a conserved-population threshold model distinguishing transient state shocks from parameter-altering structural shocks, showing via Perron-Frobenius analysis that only the latter can shift long-run attractors toward durable radical-party realignment. This theoretical framework, illustrated with stylised German federal election data from 2013-2025, implies that crisis-induced surges (such as post-2015 migration or 2020-22 inflation) fade unless they cross mobilisation-window bounds and produce cumulative staircase effects. Yet the model underplays exogenous amplifiers like algorithmic amplification and coalition exclusion tactics that real-world cases reveal; for instance, AfD persistence drew not only from structural economic thresholds but from mainstream party cordons sanitaires that paradoxically boosted protest voting. Related work by Mudde (2019) on the normalisation of the radical right and Inglehart-Norris cultural backlash patterns (2016) suggests the preprint's disengagement compartment omits feedback loops from elite discourse, while its mathematical assumptions of population conservation ignore turnout volatility documented in German electoral statistics. As a 2026 preprint without peer review or empirical calibration beyond illustration, the study lacks sample-based validation and risks overgeneralising from one national trajectory.