But who cares whether you get upset or not about flags and symbols. Because you aren't everyone - amazing concept isn't it.
Many many people would be horribly upset at the history and message the confederate flag brings with it. And you not caring about USSR flags being waved is utterly irrelevant to that.
The original point was, just as not everyone is upset by a Soviet flag even though it symbolizes atrocities, not everyone is upset by a Confederate flag, even though it symbolizes a heinous history.
Theres even been the strong de-communisation program in ukraine (sic) since 2015 banning soviet (sic) symbols, songs, statues and actual communist parties. Its just isnt a thing anymore in the mainstream.
The "de communization" was the result of a tiny number of Banderists using their symbols in Western Ukraine. To ban those symbols, communist symbols had to be "attacked" as well. But today, one can sing Soviet songs, one can fly a Soviet flag, one can even glorify the USSR in Ukraine. It is in the mainstream. Read newspapers. There is a nostalgia for the past, because only the stability of the Brezhnev years is presented.
Incidentally, the Communist Party of Ukraine is not banned. It still exists, and it still has members. But, it can't run in elections. That's the result of their support of the annexation of Crimea, which, under Ukrainian law, was a support of terrorism.