I think with the Rowling Forstater case there's a nuance that her contract was not renewed, rather than being drummed out of the office in the middle of the day [0]. When you have a job representing an organisation there are expectations of how you act in your public role in a job and I would fully expect making discriminatory statements to see me not employed at a company if I didn't make an apology for them. I'd also expect making statements that talked down our product, or belittled a colleague, to be a disciplinary matter, we are professionals after all and if you want shoot the breeze with friends and family, twitter probably isn't the forum.
On Bari Weiss I've not really been following it, from a distance it seems like attention seeking. She's a public figure with a huge platform, people used their free speech to call her an idiot (no doubt tipping into abuse as the Internet tends to and that's a moderation issue). But we have a right to call columnists thick as shit. We all have a right of reply, speech is free (though less so in the UK where pretty much anything gets you sued for libel by free speech crusaders like Rowling). Speech isn't free of consequences, it doesn't exist in a vacuum and discriminatory and hostile speech has historically preceded violence against minority groups. As my previous comment getting downvoted shows, being in the outgroup on a forum can suck, but people don't have to uncritically upvote me and give me the warm fuzzies if they disagree.
Edit: typing on a phone so it's hard to do a long form reply. On the master thing, like I say I don't have a strong opinion one way or another, I'm happy for github to change it if only because it's shorter. I don't think it's a particularly valuable cause or hill to die on and I don't know of an instance of the enraged mob tearing down someone for keeping their branches named as master (though again they might use right of reply to call them a prick) but it's symbolic of white Liberal responses to injustice. We're not debating git branch names, except in the navel gazing tech world we inhabit. We're debating there being something like 5 days last year where the US police did not kill one or more people. We've (or rather for US readers, you've) got a president who wants to outlaw bail funds, protest medics, etc. The real cancel culture is the power wielded by states, as pretty much the entire ME for the past however many centuries could attest to or transgender, gay, black soldiers who serve or served the US in uniform, or corporations and lawyers, as blacklisted construction workers or Aaron Schwartz (sp) could tell you.
Discussions about whether we have to give Bari Weiss our eternal gratitude for excreting another column feel deeply unserious when they talk over real problems.
[0] https://www.theguardian.com/society/2019/dec/18/judge-rules-...