"You don't seem to have parsed my reason. I am not refraining from submitting because I believe I would be rejected. I know how to produce speech proposals that are reliably accepted and have keynoted a conference of the organization behind the policy in question."
You're confusing the Gnome Speaker Guidelines (which I wrote the first draft of) with the Anti-Harassment Policy adopted by LCA (which I had nothing to with).
"I am refraining from submitting because I would have to be subjected to a policy that violates my rights"
Given that you don't have any right to appear at a conference in the first place, and given that conferences have the right to terminate presentations at any time for any reason and issue whatever apologies they want to, I'm struggling to see how this violates your rights in any way whatsoever.
'For you to tell me "just don't submit" is like saying "That lady should simply have stayed in the back of the bus".'
You're genuinely arguing that a private event's requirement that speakers and attendees be conscious of the effect that their behaviour may have on others is equivalent to state-backed discrimination against its own citizens in their public life on the basis of the colour of their skin? There's... rather a lot of ways in which these things aren't analogous.