Sanctions are often universal rather than person specific. Grischuk isn't being banned for his specific political beliefs. He is being banned as an action aga

Sanctions are often universal rather than person specific. Grischuk isn't being banned for his specific political beliefs. He is being banned as an action against his country. Some of the ways we punish that country are by punishing its people. It doesn't mean the people receiving that punishment are guilty of anything, it is just the method of putting pressure on that country's government to reverse course. This is true of basically all sanctions against Russia whether is is something symbolic like preventing athletes from competing under a Russian flag, something general like trade sanctions, or something very specific such as seizing a yacht of an oligarch. These all hurt specific people in varying ways that isn't proportional with those people's personal politics or guilt in the actions of the Russian government.