If there is a god then why is there cactus?

There is a God. There is cactus because certain animals in the desert actually eat the annoying/majestic things. There is cactus because Sin entered the world from the Garden of Eden when Eve and Adam decided to eat the forbidden fruit. Who knows? Maybe that cactus was the forbidden fruit at one point, and God put spikey things on it so no one would ever be able to truly enjoy eating it again. lol Something to think about.