Disinfo: The Western countries did not let Yulia Samoylova into the Eurovision finals in order to humiliate Russia

Actually, the decision on the part of the US was made last year and has nothing to do with the current political situation in Ukraine. In December 2017 the US administration put Ukraine on notice for “failing to provide adequate and effective protection of intellectual property rights, providing 120 days to remedy the situation and improve the legal regime governing royalties. As the 120 days’ notice expired and the copyright situation in Ukraine remained unchanged, Ukraine’s partial suspension from the Generalized System of Preferences for 155 types of Ukrainian products went into effect in April 26, 2018. In a special 2018 report on intellectual property rights issued by the Office of the US Trade Representative, Ukraine continues to be on the US priority watch list for copyright infringement together with China, Russia, Argentina and eight other countries. Further debunking at Stopfake.org

Recurring pro-Kremlin disinformation. No evidence given that Chrystia Freeland would have lied. Ms. Freeland's uncle, John-Paul Himka has studied family history and told to the Globe and Mail in 2017:

"He was the editor of a legal newspaper in Nazi-occupied Poland. He never signed anything in the paper. He never made policy or that kind of thing. It wouldn't be his call. [The newspaper] also performed a function for Ukrainian culture and kept Ukrainian intelligentsia alive during the war by paying them for articles, not just anti-Semitic articles but articles about Ukrainian culture. It was a bit of a mixed bag."