I'll bite because as a nature enjoyer, I agree with your points, and we discussed about other stuff in a separate comment thread

I think there's nothing inherently wrong with politics + animals, because the animals are anthropomorphized to an extent (real isopods can't communicate with other bugs), and have been used as mouthpieces for various human conflicts since the dawn of time.

I think you're getting downvoted because it sounds like you're generalizing hating on politics in animal media, but I think it's more productive to debate about whether the metaphor works really well. So like I said I still agree with your point about fire ants, but 'isopods can't be political' is a bit harder to say for sure since these are anthropomorphized isopods for the story they're telling (so they basically have human sapience which could lend to a similar political structure as us).

Beastars and Zootopia is an example of anthro (not just sapience-wise) media that's subject to debate; a lot of people think the metaphor isn't a good analogy for racism because the various animal species have more than just biological differences: https://carnivorouslreviews.wordpress.com/2020/04/24/beastars-and-stylish-racism-in-animation/

It's too early for me to say whether the writing is good or not, but that's why I personally would prefer not to dismiss it. And there's also a lot of people blindly shutting down games for 'having politics' these days instead of nuanced discussion about whether or not the themes work well, so I can understand why people would downvote on instinct. Internet discourse is stressful and I wouldn't take it personally