Or microplastics?

Anything that damages the gut microbiome. Ultra-processed foods are one of many things. Antibiotics may be the biggest factor.

Lack of fiber is a big player in colon cancer apparently.

I don't know what ultraprocessed foods you're sticking in your cooch to get cervical cancer, but I'm guessing there's not a lot of research on that.

I think there is just too much bad shit that we are exposed to, to find one specific reason.

Yes, the oncogenic paradox... We don't know what causes cancer... But ever source of inflammation seems to increase risk... The mitochondrial theory of cancer (Seyfried, Warburg) would say the high glucose environment people create in their blood is the core reason for the surge of modern cancers.