Poll: 43% of Ukrainains believe that nazism is widespread in Ukraine (some are probably nazis themselves though)
(lemmygrad.ml)
Statistics is not intuitive and weird. If the population of people asked were randomly chosen in a representative manner, then 1 thousand people is definitely enough for an accurate reading for a country of 40 million people
You only need 1068 people to achieve a 95% confidence interval (95% of answers are expected to be the same if you redid the survey, also the industry standard to achieve) and 3% margins of error for a population of 40 million
Play around with the calculator a little bit and you'll find something interesting. 2400 people are needed for a 95% interval of the population of USA (300 million). However, if you increase that population size from 300 million into even dozens of billions, the sample size required to achieve 95% confidence increases slower and slower to the point where it's almost useless to increase your sample size past a few thousand