I have already refered to the differences between eastern and western Ukraine and Kiev.
I could say the same for example USA is not the same everywhere I am sure there are differences between wesetrn and eastern coast.Aslo Germany is not the same there are strong differences between the North the South and the East.However Germany as a whole is quite different than Poland and Ukraine is closer to Poland than Germany is toi Poland but there are differences between Ukraine as a whole and Poland as a whole(and polish girls in eastern Poland or Northern Poland are different than girls in western Poland this does not mean you cannot talk about Poland as whole.I agree however that the difference between eastern and western Poland is smaller than the difference between eastern and western Ukraine).
I could say the same for example USA is not the same everywhere I am sure there are differences between wesetrn and eastern coast.Aslo Germany is not the same there are strong differences between the North the South and the East.However Germany as a whole is quite different than Poland and Ukraine is closer to Poland than Germany is toi Poland but there are differences between Ukraine as a whole and Poland as a whole(and polish girls in eastern Poland or Northern Poland are different than girls in western Poland this does not mean you cannot talk about Poland as whole.I agree however that the difference between eastern and western Poland is smaller than the difference between eastern and western Ukraine).