its was also the 2nd most populous continent, africa is in 3rd and latin america in a distant 4th with north america and oceania basically none existent.
over half the population asia lived in either China or india, and i dont imagine either being split.
between the 3 factions we have from asia they make up 208 million of those 255 million, 229 if we include pakistan and bangladesh in india. there are still a couple of notable countries in population missing: Persia ,korea, siam and indonesia (and yes im aware we can split etc. but we assume we dont). but most of these are smaller than most of the european nations in the game atm. Europe simply just created a larger amount of somewhat competitive states.
i know this is weird because its modern borders etc. etc. it still kinda paints the picture.
now you mention khazakstan, sadly i cant find concrete numbers on my quick google search but based on the picture it looks about the same as the netherlands or denmark-norway, so lets say 1 million people, by 1900 it was apparently around 5 million which would match that. the PLC had a population of 7.5 million nearly 2% of the worlds population.
Poland actively fought the Ottomans, the Germans, the Swedes and the Russians and had a real impact on what those countries did. Polish victories over the Ottoman empire marked the long decline of the Ottomans from one of the worlds largest powers to the poor man of Europe.
“In the mid-1500s, united Poland was the largest state in Europe and perhaps the continent’s most powerful nation.”
what did khazakstan do? after the fall of the golden horde, you say they fought the russians, chinese and persians but to what extend is the question, did they really change the policy of any of those countries cause a quick glans at russian expansion east or the politics of china etc. suggest no, they didn’t. so how do you make the conclusion and argument that they are more important than Poland.
its a toothless argument that so far you haven’t given any evidence or arguments to suggest it is. if your argument is that you can make a unique and fun faction, then good, argue that. but its nonsense to sit and suggest its as important as Poland, it just doesn’t match reality.
im sorry to say this but europe simply produced the largest amount of competitive civs, Asia was dominated by China, japan and the mughals. i think there are still important pieces missing from there but there just isnt 12 or 13 or whatever the amount of European factions one could come up with.