The first offense is from his twitter account:
>Latter Day Saint (Christian), Conservative
The second offense is that there is a picture of him with a MAGA hat somewhere on the Internet.
That was enough for someone to say they're uncomfortable attending the same conference as him.
Because he is a Mormon, he tried to solve the issue the Mormon way, offering them to discuss the issue. This was considered "tone policing" by the anonymous "Linux Foundation" account.
The raging assholes enforcing this fake social justice nonsense must be unambiguously called out by anyone with half a brain.