but what I do care about is the profiteering of it
That would be a reasonable criticism, if it were at all true that Monsanto goes around suing people willy-nilly. They don't. That's a myth fabricated by the anti-GMO movement to discredit genetic engineering via guilt by association. There is not a single case, not one, of Monsanto suing a farmer for being cross pollinated. Every single time, they knew damned well that they were violating the law. What you are doing would be like looking at a guy selling bootleg copies of Frozen and declaring that Disney made home videos illegal. It is dishonest and false.
Monsanto has achieved a monopoly status
Monopoly? Tell that to Syngenta, Dow, and Pioneer. This does not look like a monopoly to me.
by using the legal system to patent their modifications
They patent plants, so what? Breeders (aka the people ensuring you have an abundant and tasty food supply, you're welcome) been doing for decades. You know those nice, sweet, HoneyCrisp apples that everyone loves? Thank plant patents for supporting the program that developed it.
Monsanto's exploitation of nature to achieve a monopoly is so bad that some countries have completely banned Monsanto and its products
You're not even trying to avoid the ad populum there are you. More countries have laws against homosexuality than genetic engineering, but that doesn't make it right. By the way, they have laws against genetic engineering, not Monsanto. If this is about one single company, why do you think a, for example, GMO papaya developed by the University of Hawai'i (aka not Monsanto) would be just as illegal as a Syngenta corn, while a non-GMO tomato by Monsanto would be legal...and somehow this is about the company? Nope, it is populism combined with fearmongering combined with trade protectionism, and no one cares if science gets thrown under the bus. Stop defending it. There's no defense for it.
Oh and I'll just throw it out there that Monsanto were the ones who developed and peddled Agent Orange to the U.S. Government as a cure all for jungle warfare back in the day.
Now you're just fishing for an emotional response, and you're wrong to boot. The government developed it. Companies such as Monsanto and Dow produced it (during the Cold War, I might add). They actually warned the government about impurities. The government didn't care. And even if you were right, it still doesn't matter. You might as well stop buying Ford cars because their founder was antisemitic or stop buying Volkswagen because of their Nazi ties. You're using what's called the genetic fallacy.
In short, you are wrong. Monsanto is not the bogeyman they are made out to be. They are only the target of so many false accusations because a giant shadow overlord buying off all the independent scientists and manipulating all the data is absolutely essential to maintain the anti-GMO conspiracy. If there were no Monsanto, it would be necessary for the anti-GMO movement to create it.