The ten densest subhalos ΛCDM builds around a Milky-Way host are too massive to have stayed dark and too dense to match any observed satellite's kinematics: too big to fail, yet failed (Boylan-Kolchin et al. 2011). The same shortfall appears around Andromeda and among isolated field dwarfs where stripping cannot reach, marking the predicted central densities of small halos as systematically too high across environments.
The subhalo mass function and the cuspy density profile are both direct products of collisionless CDM collapse: the model must build those dense satellites, and having built them, must light them. Their kinematic absence forces feedback surgery in systems with a million suns of stars, or a population of massive halos that mysteriously declined to host galaxies.
SCT removes the failing objects at the source: there is no collisionless CDM, hence no subhalo mass function and no cuspy dense satellites demanding tenants (P54). Satellites are debris condensations whose dynamical masses are baryonic mass amplified by coherence, A(N, σ_v, R), and for small systems the amplification is modest with shallow inner profiles, because A falls toward 1 where local baryonic gravity is weak and source counts are small (P50, P52). The kinematics observed across the bright satellites, dispersions of tens of km/s with cored profiles, are the natural output of coherent baryonic dynamics, while the too-dense too-big subhalos were never part of the inventory.
The environmental universality that defeats stripping defenses is the confirming signature: field dwarfs show the same gentle central densities as satellites because the density law is set by coherence physics, identical everywhere, rather than by environment-dependent halo processing. Too-big-to-fail and core-cusp collapse into one statement, the centers of small systems gravitate like their baryons plus modest amplification, which is exactly what every rotation curve and dispersion profile in the regime shows (P53 guarantees pure GR in the small-N limit).
This is the same coherence law behind the RAR's tightness and the missing-satellite census. There is no need to invoke feedback strong enough to remodel halos in galaxies that barely formed stars.
The registered kill: discovery of the missing population, satellites or field dwarfs with the dense, cuspy kinematics of the predicted massive subhalos (central circular velocities above 40 to 50 km/s in million-solar-mass stellar systems), would restore the CDM inventory and falsify the no-subhalo reading. Population-level: Rubin-era kinematic censuses finding central density diversity tracking environment and assembly history, rather than the uniform coherence law, would break the universal density account.