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QED. That's what you were taught and, by god, that's all there is. Where and when, pray tell, were Apple and Adobe products proclaimed to be the 'industry standard' other than by Apple and Adobe and their legions of young acolytes that feel as they do because they know nothing else? There's nothing wrong with Adobe products but that's not all there is. Not by a long shot. There's other packages every bit as capable and far superior in various specific aspects.
You put me in mind of a hoard of kids that went to school in the 1990's in the newly minted discipline of 'Computer Science'. In the course of their studies these empty young minds were taught something called 'Pascal'. This was a language designed by Niklaus WIrth and it was constructed to teach compilers. It did this in the most convoluted clumsy way possible in order to teach aspects of various real compilers. Unfortunately these kids marched forth just knowing that Pascal was the be all end all of languages when it was anything but that. To them it was the 'industry standard'. Their devotion to this ridiculous language hastened the demise of at least one excellent operating system and grievously wounded a number of others.
Bob, that is a false equivalency... or is it a faulty comparison? I can't remember. Either way, whether or not Adobe products are better or not has no bearing on their standing as the "industry standard". For example, Americans still use the archaic imperial system. That unit of measurement is the industry standard in many (most) areas of manufacturing in the US, however, experts agree that the metric system is a superior unit of measurement.
You can say that you prefer one over the other, and as I said, more power to you. But that doesn't change the fact that Illustrator, InDesign and Photoshop are the industry standard for design.
But further to that, even though it doesn't NEED to be the superior product to be the industry standard, it also happens to be the superior product, and not because of yours or my personal preferences, but simply because they have put the largest amount of resources into developing it over the years separating themselves from any competition. This really isn't a Ford vs Chevy or Apple vs Android scenario, because in this case, the difference between first and second place is so vast.