RE: WTF is a GMO?
Where are the places where it's ever been impossible to grow anything? Even in areas of extremes of climate there are plants which have adapted to the environment, the question is whether they are edible by humans or whether people chose not to eat them. I'm hardly a person to demonise scientific achievements but the fact is that a lot of the world hunger you're talking about is a man made problem especially in countries around the tropics where there isn't a limited growing season.
Also anyone who thinks that the main objective of any scientist is purely invention and exploration for purely benevolent reasons needs to take a step back and take another look at their faith in scientists as some kind of godlike humans. If there was no monetary incentive in science why would these people do it?
Lastly, if you consider the Gaia hypothesise then wouldn't GMOs have an adverse effect in the long term?
And in the case of the mosquitoes which have been genetically modified to go extinct because they spread disease, what will the long term consequence of their extinction be on the entire food chain which they belong to?
I will just address the point about worshiping scientists.
They do it because they can't do otherwise. Ofc there are greedy assholes in all professions, but the majority is not in it for the money. And there is very simple reason behind it -- there is no money in science! No person ever went into science because they saw it as an incredibly lucrative option. No, just the contrary. They know that they will earn barely enough to make a living. Most of them do it because they are just so goddamn fascinated by it and some because they feel the sense of mission.