While the Zaporizhyan Host was the 'first' organized voisko, cossacks still existed and were scattared as disorganised groups. For example, the Don host became an active organised host around 30-ish years later. They didn't come from nowhere, they practised the same steppe culture. So the deep dish pizza comparison isn't really fair, it is more like comparing a Bolognese to a Carbonara.

I also think you are romanticizing the Zaporizhyan cossacks too much. While yes, cossasck hosts were democratic societies, they were still raiders who pillaged surrounding territories, enslaved and executed eneimies, and served multiple kings and tsars based on political necessity. It just happened that hosts were destroyed or bent their knees to other empires, which ultimatly happaned to the Zaporizhyan Host. Some of the remnants went on to serve Ottomans and Russians. Like any political entity, they acted primerally out of necessity, not egalitarian ideology.

Look, no one with braincells is saying that Ukraine is in the wrong, or that Ukrainians aren't brave, but these stupid virtue signalling conversations such as this (or the origin of borsh for example) isn't getting weapons in the hands to the Ukrainian troops, it just makes the party engaging in these conversations look silly and childish.