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The EFT of Large Scale Structure is a robust approach for constructing theoretical predictions for the distribution of cosmological matter densities. Within it, one of the key building blocks for observables is the galaxy overdensity functional, which can be addressed perturbatively through appeal to symmetries. There are two traditional methods for constructing these "bias tracer" distributions: one from a non-local-in-space view, the other a non-local in-time approach. Both construct position-space operators based on symmetry arguments, which are then mapped into momentum-space "bias kernels". Recently, initial progress was made towards a third approach: bootstrapping the kernels directly via physical consistency conditions. I'll discuss my work systematizing the bootstrap approach -- the result of which is strikingly similar to factorization-channel constructions of amplitudes. Using this method, we have been able to construct 7-point bias kernels -- four orders beyond previous bootstrap attempts, and two orders beyond the non-local-in-time approach. Through making contact with the traditional approaches, we are able to identify previously-unaccounted-for behavior within both framework, first appearing at 6 points, which imprints both the flow of the tracer and the gravitational sources acting on it.