When you cite the Gaia hypothesis to illustrate your objections to pantheism, my immediate question is “which”? James Lovelock revised and refined his Gaia model in response to criticism over the years, and variants of it have been set in a continuum from “strong” (attributing agency and intention to the biosphere) to “weak” (a more reductionist view of the biota acting in their own self-interest and changing their environment as a consequence, in an entirely accidental manner). But the underlying idea behind all these variants is the same: life creates and sustains the atmospheric and geophysical conditions that in turn sustain life. And this is entirely compatible with Darwin’s theory of natural selection—but the unit of selection expands from the individual species to species +environment, coevolving together. If (and when) we destroy our biological support system (Gaia), we will necessarily destroy ourselves as well.