> For example pointing out that the number of unarmed Blacks killed by police is actually very low (https://www.lawenforcementtoday.com/poll-44-of-liberals-say-...) gets you mass reporting from dedicated activists and results in your post being blocked or account bans.

No, this is because extremely online people fight each other by begging the owners of websites to censor their enemies. It has nothing to do with the bad argument, which John Birchers would see as ancient.