Oh yes. We people are so vain. Long ago in pre-history, plants dominated over smaller animals by far. There were also giant insects, relatively speaking. I believe (although this I can't prove) that there were giant versions of everything. There are certainly fossils of giant dinosaurs, giant meat eating plants, and giant flowers.

I just wonder, would a plant experience the shame we do when eating us? Unlikely. Why are we the only mammals ashamed of living? We literally hate our own species. I have no idea why. Lol.

Prehistoric Giant Mushrooms