It's fine that you don't understand, and you are clearly asking for someone to educate you. This is where you should have started out. Instead you started out pasting an ignorant opinion on a topic you knew nothing about.I am still waiting for someone to explain how the farmers East of the Manitoba border have been very successful for decades without the CWB.
I'm happy to educate you on the subject. The CWB controls enough of the supply of wheat that it can influence prices. It does this primarily for the benefit of CWB farmers, but non-CWB farmers plainly benefit too. This plainly benefits wheat farmers at the expense of wheat consumers.
benefit
Ontario's wheat producers represent only a tiny fraction of the total supply of wheat, and are basically price takers--they have to accept whatever price the market is offering, and do not have enough of a supply to be able to influence pricing. On the other hand, CWB's ability to regulate the supply of wheat allows it to influence the supply side of the market, driving up prices by restricting supply when necessary.