Do you think we evolved from fungi?

Fungi are really really cool, and some are delicious.

Unfortunately, ID_Neon doesn't post here, so you can't expect a vitriolic rebuttal.

No, because of Galileo's Square-Cube Law. This law states that as size changes, volume changes to the cube, while surface area changes to the square. In other words, internal volume changes much more rapidly than external surface area.

Ants breathe in oxygen through spiracles which are a series of holes located on the sides of their bodies. The spiracles are connected through a network of tubes which help distribute the oxygen to almost every cell in their body.

Therefore, 12 foot tall ants would not have sufficient external surface area to oxygenate their greatly increased volume of blood, and would asphyxiate.

They tried to address this limitation in the movie Mimic (1997) by giving their giant insects lungs. That worked just fine until late in the story they show giant winged insects, with wings in the same proportions as normal insects. Again, because of Galileo's Square-Cube Law, normal proportioned wings would have insufficient surface area to support the greatly increased volume of giant insects. Giant wings insects, if they could exist, would have enormous wings that would seem all out of proportion to us.