Well. "Soulism" sounds very much opposed to my own worldview and politics, to a point where I'm not really interested in participating in that. But you can do what you want, obviously, it's just a link to a pdf!
Based on the manifesto, I would suggest that soulism is just another model which divides body from mind ("matter" and "information"), and that it doesn't account for the way political forces are involved in producing subjectivity, identity, desire, and the individuated bodymind. I had something like a psychotic episode related to mind/body dualism a few years ago, and I try not to engage with or involve myself with ideas like that now, cause it brings back feelings of like, chaos and instability.
Maybe, idk. I'm very much a realist, just in a very, idiosyncratic way I guess. But "anarchism of perception" is appealing to me.