Exactly! I mean… some reptiles eat eggs, so we could be talking about something that happened before our ancestors had developed the concept of an ass. I don’t think it’s far-fetched to think that eating eggs may be as old a concept as eggs themselves. In that case, the first egg-eaters evolved alongside the first egg-layers, and were eating proto-eggs before even the modern egg existed.
Imagine if zebras started evolving very tough placentas over time, and the foals started lying around in them for a couple days before popping out: Lions would keep eating newborn zebras, and no single lion generation would notice that they were slightly different from 1000 years prior. Give that development a million years or whatever and you now have egg-laying zebras and egg-eating lions!
The point is exactly that they’re trying. Despite the parade being attacked, the democratically elected government, and the police as an institution are supporting them. That is the essence of working towards freedom of expression and progress: The fact that the people in the parade are permitted by the government to express themselves, and protected by the government when they do so, even if popular opinion may be against them.