Not the parent but pretty sure they intended to use "regime" in the other sense, as it fits here much better.
> Contemporary academic usage of the term "regime" is broader than popular and journalistic usage, meaning "an intermediate stratum between the government (which makes day-to-day decisions and is easy to alter) and the state (which is a complex bureaucracy tasked with a range of coercive functions)."
Our dead and flagged parent probably thinks that there will be some broader paradigm change in the social justice approach between the Trump and the Biden administration and that the latter will be more supportive on affirmative action.
