It's like he didn't even read the letter. It's fact after fact, sourced and linked and screenshotted, demonstrating that Dolstra, the Foundation, and Anduril are engaged in toxic leadership that are concretely limiting the Nix Project's ability to build good software. It's not even about Anduril's business, it's about how they're at the center of a web of conflicts of interest that are producing poor software engineering decisions and driving away good contributors. The letter's authorship clearly understood that the obvious response was going to involve tone policing and complaints about "ideology" and went well out of their way to write the letter to address that avenue of attack - the whole first paragraph is about how it's not about ideology, the first sentence is that it's not about ideology, there are dozens of points about how it's not about ideology. It's all about observed cultural dynamics and results.