Surely it's not beyond the platform owners to identify where this shite is coming from. I was actually surprised how much came from the UK after the mens 2020 Euros.
Data from the UK Football Policing Unit found that of 207 social media posts deemed to be criminal, 34 came from accounts in Britain and 123 in other countries.
https://news.sky.com/story/majority-of-euro-2020-racist-abuse-came-from-uk-accounts-and-99-were-not-anonymous-says-twitter-12377977