World's most powerful passport list impacted by Ukraine conflict
https://edition.cnn.com/travel/article/henley-index-world-best-passport-2022/index.html
It's not theoretical to ban entry of Russian citizens in this situation. Who have to be barred from entry to other nations are political leaders and oligarch. Since some Russian citizens are seeking nations to evaluate, it's not better to ban all of the Russian citizens to immigrate.
