Three Negative Results on Relational Proto-Individuation of Oscillons in 1+1 Dimensions: Collision, Structured Environment, and Asymmetric Potential Deformation

We investigate whether the interaction between metastable oscillons of the coherential field C(x,t) in the canonical sector (V_B = (C²−1)²) can generate relational persistence, configurational remanence, or emergent protection absent in the isolated oscillon. Three mechanisms are tested in 1+1 dimensions. Phase I (collision): head-on collisions between pre-relaxed oscillons produce rebound with significant radiation but no local remanence; preliminary signals from raw Gaussian seeds are identified as preparation artifacts by the 3a→3b validation protocol. Phase II (structured environment): spatial gradients and localized step barriers either transmit or destroy the oscillon with no intermediate inscription regime. Phase III, Route A (potential deformation): the asymmetric potential V_α(C) = (C²−1)² + αC(C²−1) is swept over α ∈ [0.01, 0.25] (10 formal points) plus stress test to α = 0.40. The oscillon survives for all α (Gate 0 positive), but no additional internal channel appears: the odd spatial moment χ₃ is pure noise, the spectrum shows no new peaks, and all observables remain indistinguishable from the symmetric baseline (Gate 1 negative; kill switch KS-IIIa activated). The convergent diagnosis is that attractor rigidity in 1+1 is a structural property of the nonlinear dynamics, resistant to external stimulus, deterministic environment, and minimal internal deformation. Part of the Radial Coherential Dynamics (RCD) 2.0 program.