I think in this text a corporation is being modelled as a single being with a single decision-making capacity.

Sort of like how "my brain" forces spicy food on "my intestines", but when you model the two things together as a single human being, then you can confidently state that nobody is forcing me to eat spicy food.

Really, all the GP is trying to say is that neither Github nor Jira has any external market forces colluding to push those products onto "software-buying entities" (like individual freelancers, or whole corporations) that don't want to use them. They're just products, in the market, with freely-available alternatives, and any entity who would normally have the power to choose which software to buy, isn't having that decision made for them by market-distorting forces. There's no Github or Jira monopoly that has come along and crushed the alternatives out of existence, such that they're the only options even if you, a software-buying entity, wanted to buy an alternative.

Haha, thank you for this! You must forgive me ("the GP") for being bemused by the textual analysis you have written in defense of my comment!

That’s not what “forced” means. There are plenty of other jobs, especially for the kinds of people who find Jira in their workflows.

If you know a company that's hiring and has "no Jira" written into the contract, please let me know where! It's easy to find a job at a company that isn't using Jira right now, but then a tool like GitHub offers an integration and they change their minds.

As long as you're located in or can move to the right places.