And believe me, people never really liked Yanukovych so much to take arms. The leaders of “separatists” were literal nobodies, nobody knew who they are. Members of Yanukovych party themselves did not en masse supported separatists.
Second, politicians from Party of Regions participated in both 2014 and 2019 parliamentary elections. Same politicians, top Yanukovych lieutenants, with the same oligarchic sponsors.
Third, those elections were not “boycotted” people still participated, on territory controlled by Ukrainian government.