Unfortunately we will all find out a few decades down the road. This stuff has been around for a really short time in the scheme of things. Many many so call scientific advancements have been proven not so great after a longer period of time. We've been human guinea pigs on many fronts, with inventors & the government reassuring us until they can't. Time will tell.I'm not sure what you're trying to say here.
Every single GMO crop that goes to market goes through extensive testing. They are tested for potential allergens. They are tested to see if their protein/amino acid profiles match the original plant. At this point, there is no evidence of harm from any GMO crop. No weird allergies, no people or animals getting sick - nothing. We've been using these things for decades now, and they're fine.
There are tens of thousands of thorough independent studies, and no evidence of harm - just a whole lot of conflation and misinformation from the giant marketing machine that is organic foods.
This is an article on the single most comprehensive feeding study ever done (probably on anything) on GMOs - it deals with HUNDREDS OF BILLIONS of animals - and there is no evidence of harm, at all:
http://theness.com/neurologicablog/index.php/19-years-of-feeding-animals-gmo-shows-no-harm/
The problem here is that people generally create a story in their minds, and then go and try to find evidence to support that story, instead of looking at the evidence and deciding what the story is. When you've got cranks like the Foodbabe and "Dr." Oz out there, it's all people need to affirm their story, and then they stop looking. The scientific evidence here is prolific and clear - and there wouldn't be any arguments if people would stop trying to get their science from people who don't understand science at all.