"Happened by random chance" doesn't sound very plausible to most people, sorry.
Well since there are a few trillion planets in the universe, and only one that we currently know of has life on it, it seems like a pretty random/accidental occurrence to me. That doesn't seem plausible, but a 2000 year old book written by humans who thought the earth was flat is more believable? If that's what the majority believes in, I'll remain a minority that you very much.