I think you may be misunderstanding the point of the epoche. It is valuable tool for Heidegger and Derrida as well as Husserl. Bracketing our preconceptions allows us to distinguish what is primary and irreducible from what is secondary and derived. You perform your own epoche when you dig beneath concepts like symbol, the physical and consciousness to expose their conditions of possibility.
What Husserl is trying to reveal in bracketing an intersubjective world of persons is not an underlying pathological condition of chaos but the fact that what makes possible then shared understanding of a discursive forum of persons is a more primordial and originary forum of intersubjectivity within the ‘person’, the communication between myself and myself. If there were not already a synthetic constituting process allowing for a meaningful continuity from moment to moment in my sense of myself and my world, then hermeneutic agreement among persons would not be possible, because the latter depends on and is constituted at a higher level out of the former . A forum of persons defined as empirico-biological facts are subjective , contingent and relative, and could be conceived other than how our current sciences understand them. But the underlying processes of intersubjectivity which operate prior to any claimed factual distinction between persons in an empirical world are irreducible
So in his thought experiment in which we bracket out , or ‘annihilate’ the empirical world and the world of other persons, Husserl is showing that we dont end up in meaningless, pathological chaos, but in a more restricted but still meaningful, relevant and intricate world of correlated harmonies and similarities.
Derrida takes from Husserl the absolute fundamentality of the role of time, arguing that because I am temporal, I am always other than myself , and other to myself, from moment to moment, even as I can continue to say ‘I’. My relation to other ‘persons’ in terms of what we share and what differentiates us, is subtended by this more primary otherness within the ‘I’.