is it Tchaikovsky's fault that his works are removed from the repertoire of European orchestras?
Is this a widespread thing, or is it just that Cardiff orchestra? I know they decided to stop playing the 1812 Overture, but AFAIK that's more because it features Russians firing cannons, so might be considered to be in poor taste.
Greece banned the broadcast of the Swan Lake ballet, and Sweden banned the performance of a local folk group in a concert in support of Ukraine, because the instruments include a balalaika. The books of Tolstoy and Dostoevsky are not yet being burned in the squares, and that is nice.