the symbol predates Germany, initial findings date it back to 3300-1300 BC. you're telling me all historical religious symbols in Asian countries should wiped of the icon because of Nazis misappropriating their symbol? you would literally deface ancient sites that predate nazis by thousands of years because you can only see it as a symbol of hate?
you can use context clues such as actual hate speech, nazi slogans and genocide to distinguish those that are actually racist. the whole point of nazism is to erase culture and replace it with only the "one true race". by allowing nazis and white supremacists to appropriate symbols you're actively giving them power.
basically no company wants the bad PR. If it had come out twitch would be known as the platform with pedos and parents wouldn't let their kids use it resulting in the platform becoming obsolete.