The cultists in Far Cry 5 were already a both sides thing. The entire narrative is designed to make you second guess yourself and wonder if the cultists have a point hidden away beyond the whole kidnapping, torture, and drugging the water supply stuff they do. Each of the 3 sub-bosses has a moment where you're supposed to say like "well you're not wrong," like when they talk about the inevitability of global war or consumerism eroding everyone's humanity. Then they just up and made the cultists the good guys in the weird sequel.

I also firmly believe Ubisoft was adamant the cultists not share any identifying political tendencies with real world conservatives, since they were deathly afraid of alienating large parts of their g*mer audience. The cultists are only American reactionaries in a completely aesthetic way. Otherwise they are deliberately unrealistic, like how diverse they are, how they don't seem to be Christian at all (at one point a cultist slaps a Bible out of a preacher's hands), and they don't really seem to blame any particular structure or group on the state of the world, they just occasionally mention wishy washy things about corporations or governments.

There seems to be less concern from Ubisoft to portray pseudo-Cuba in a negative light, so the depiction seems much more scathing to me.