If there's a mod that removes the ... marxism
This is set in a failed communist regime, so you can't really remove it. It also makes sense that a bunch of characters would still be in the grips of the ideology and nostalgic about it. See current year.
Still, it is true that the game affords more sympathy to lefty NPCs. But the ideology is also presented in a negative light. After all, everything the leftists did failed and was subverted, and they're still tools to this day.
The facist characters are some of the most interesting. While it did suck that becoming a nationalist gives you negative morale when speaking up, and it does seem biased against them, it makes sense as you are going against the grain. And it leads to interesting gameplay. Only people with a strong mind can become facists in this day and age. So you'd be pushed to build up your Volition and your ability to Conceptualize the world. You'd be led towards art and style (Actual Art Degree heals Morale when Conceptualizing), and that makes sense: see Hitler, the left can't meme, the chad vs normie meme, and our very own Lyric Suite.
Utimately, keeping your morale up only cost you material resources to keep your magnesium levels steady. And you're not a marxist, are you? Mind trumps matter.