Summary:
1) 'Node Centralization' is no reason to choose between 1MB Core and 2MB other
2) Doubling block size will have negligible impact upon node count
3) In the end, nodes are negligible marginal utility anyhow.
1) agreed; the debate is fees vs. adoption; I, for one, would rather delay the onset of fees in favor of adoption for now
2) agreed; with >5800 full nodes, I sincerely doubt all that many will be forced off the network unable to keep up
3) agreed; which is unfortunate; I, for one, would like to see non-mining full nodes paid at least a little bit