It's ultimately their decision, sure, in the same way that it's ultimately up to a local business owner whether they purchase a "protection plan" from the nice salesmen with the baseball bats.
If you think the brass at MIT are in any physical danger from a bunch of angry tweeters, I don't know what to tell you.
This just seems like deflection. Conditions being worse elsewhere doesn't mean we shouldn't discuss the issues that are more local to us.
No, that's a deflection. Someone choosing to step down from their job is not an issue that can, as the parent post puts it, "destroy them at any moment without warning". Being a starving child soldier in Africa is, being locked in a cage in a foreign land is.