The number was given over two days, not one.
The protests were in over 200 cities with 5 million+ participants, WE KNOW they fired live rounds this is undeniable if you only had 200 deaths per city you would reach a death toll north of 40k already. Yes it's not verified yes there isnt a video of exactly 30000 identifiable bodies side by side. But the number really isnt as unachievable as people make it out to be.
From another article: The 30,000 figure is also far beyond tallies being compiled by activists methodically assigning names to the dead. As of Saturday, the U.S.-based Human Rights Activists News Agency said it had confirmed 5,459 deaths and is investigating 17,031 more.
https://www.aol.com/articles/iran-protest-death-toll-could-1...
The mass murdering of 5,400 people is nothing to scoff at, on any level, even over two days.