Because clearly fascist symbolism is not given a pass.
Yeah? You see a lot of people going after the Union Jack or the Stars and Stripes?
So please, be more specific (ideally with examples) with what you mean when you say fascist and capitalist symbols.
You declared a symbol of communism to represent the bad things the USSR did, so any symbol that represents any capitalist ideology or system that has ever had anything bad done under it. Let’s start with most national flags.