This Chrome extension lets you block all followers of any Twitter users with one click

I like my filter bubble on Twitter. I have no interest engaging with alt-right nationalists, flat-earthers, trolls, and conspiracy theorists. I learned about a Chrome extension called Twitter Block Chain (nothing to do with blockchains), which will block all the followers of someone's twitter account with one click. It will also block all the accounts someone is following, too. (It will not block the accounts of people you already follow, which is a good thing.)