Have you looked at the mining centralization chart? If that’s not cause for concern I dunno what is.
Discussion
Node operators have always been running at a loss. Perhaps it's time to stop calling our nodes "full nodes" unless if they are producing hash rate.
I will run an implementation that gives me control over which transactions I relay and I will point hash rate at my own block templates, even if I'm doing so at a loss.
As a node operator, I rather pay the price of mining at a loss to express my views on censorship than pay the price of wasted disk space and bandwidth.