Both Feyerabend and James are pluralists, both are pragmatists. Feyerabend begins his career with his proposal of the « pragmatic theory of observation » and finishes with the defence of the pragmatic choice of ontology:
« the definition of what is real and what is ‘mere appearance’ (or what is objective and what is subjective) depends on what kind of life one wants to live » (Philosophy and Methodology of Military Intelligence: Correspondence with Paul Feyerabend).
For some discussion of Feyerabend’s ontology see my IS ONTOLOGY MAKING US STUPID? and FEYERABEND’S COSMOLOGICAL PLURALISM.
I think the operative mistake of the quote is ‘want’. In reality we make sense wuth recourse to choice. That implies a ubiquitous unity in which we all Be.