So who is this going to piss off?

Apparently, it has been designed so that it doesn't really map on to the currently political situation. For example, it's California and Texas together, which... well... doesn't seem wholly plausible in the real world. Garland said he figured that he doesn't really need to make a film about real world tensions because everybody already knows what they are. I think the overriding point is supposed to be against polarisation...

... but undoubtedly some people will get very upset with it through a partisan or ideological lens and type about it furiously on the internet... as happens to every single movie these days. Ad nauseam.

MAGA chuds.

Most likely the right.

Going by Garland's last movie, he's a SJW lefty for sure. It's also very clear that Nick Offerman is suppose to be playing a Trump like President.

I think it's going to piss off nearly everybody. Based on the trailer Nick Offerman looks like a Trump type of President and its likely going to be seen as a "call to arms" for Antifa. The real finger needs to be pointed at The Deep State and establishment media that has brought America to the brink of collapse.

Neither. I believe the point of the movie is to support democracy and freedom rather than promote a political party.