The fungus that devastates the Cavendish banana has now arrived in Latin America

Science seeks to test new theories about the nature of reality, to improve human knowledge. It often relies on engineering to conduct experiment.

Engineering is for solving human problems at scale. Often based on scientific discovery, but not necessarily. Humans were selectively breeding food for years with no scientific theory of plant genetics.

And we kind of do not have the best track record with engineering things we can’t be sure of in the lab. Generally we do ok with tech, but bio engineering is much different.

What’s more the food industry has lied about what’s healthy for profit in the past. We have a habit of passing the buck to the next generation to cash out now.

Human avarice is enough for me to be against GMO given the plain track record (global warming, aforementioned lies by food producers, etc) of bullshit that was only found to be bullshit later.

That and I hate bananas.

The majority of the people 'afraid' of GMO are thinking of transgenics, not selective pressure. Some of the people thinking about selective breeding also have a point about loss of diversity (see corn and cutworms). You have to go all the way to the far end of the spectrum to find people like you're describing, which essentially makes it a strawman.

No we don't, we only really start looking at new kinds of toxins when they start affecting us.

GMO have one or many gene flipped, as a result many things are affected at once but genetic engineers/companies will look at optimising what interests them and ignoring the rest of the effect for the sake of cost cutting/simplification/shorter time to market. (These things have affected civil engineering companies too, which make your bridges dangerous but bridges are much simpler to reason compared to a multicellular organism like plants and bridges don't reproduce or evolve on their own. The seeds will not be picked by intercontinental birds and dropped somewhere where they start displacing local varieties or evolve into something dangerous (toxic?) for humans. While bridges have small life, genetic modification can survive for a very long time.

Some changes induced by GMO process will take long time test.

By that time it would have spread to billions of humans, thanks to modern industrial process and globalization.

Heck, we can't reliably alter genes in humans which makes them taller then how can you be sure of GMO crops?

Genetic engineers look at correlations in genes then they try to flip some of them randomly and if they observe positive change in the feature they are optimizing, they call it success if it doesn't produce immediate negative effects.

GMO variety also isn't sterile, so it might evolve into something dangerous. Why it shouldn't? The genetic history of the plant which stopped it from being toxic to humans, encoded in its genes has now been edited out by genetic engineers.

GMO come from flawed understanding of how genes work. Most GMO supporters claim that the nutations we are inducing through GMO process are also capable of happening in nature on its own.

Sure, but genes not just carry info of function but genetic history too that's how we remember how to fight viruses/backterias. A person who has been burned by keep their hand on flame will not try the same second time, same way a planet which has mutated in past in favour of something which made it resistant and survive in nature will select against the feature which made it survive.

GMO people think mutations happen at random, without any peeking at past mutations (genetic history) which is incorrect assumption.