The beef you're talking about here is between pcwalton and Andrew. Patrick posted those things after he had left Rust leadership.
Andrew and I literally got some tacos last week. I mean, I'm not in Rust leadership anymore either, but this sort of thing just isn't recognizable to me outside of, again, a few posts by one person who no longer even worked on Rust.
Yes, he was free to express his bigotry once he stepped down. Before that, Patrick was the leader and he hated non-memory-safe languages. He was not the only one, and that hate got worse after he left.
It's nice you got tacos with Zig's BDFL and I don't categorize you as a "hater". Rather, I think the Rust Core Group altogether was toxic. Unable to see their hate as hate, and having memories largely selective and largely untrustworthy.