I mentioned the Indian Ocean kingdoms mostly in my post. Cutting our the Ottomans from trade in the Indian ocean (directly or indirectly through muslim kingdoms) there was one of their main motivations. And the Portuguese did attack deeper into the middle east from their positions in the Indian ocean.
You should also have the decency to add more context to your post then and actually explain why the Portuguese got away with what they did instead of some glorifying bullshit to pat Portugal on the back. And that's
BEFORE I touch on your ridiculous claims on the New World empires because oh buddy do I have paragraphs on paragraphs for you.
For the unaware Era posters, the Portuguese had the luxury of sitting at the ass end of the Silk Road meaning they were upcharged out the ass on trade, while also being far removed from major military conflicts. This allowed them to spend the better part of a century on naval advancements so as to circumvent Muslim trade routes across the Sahara.
This led to Portuguese voyages first into West Africa and then later to India once they realized they had the capability of it. Once in the Indian Ocean they found that they had by far the only real means to engage in naval warfare, with almost all ocean-going vessels meant for transportation or for crossing the distance into melee combat(akin to Roman galley combat in the Mediterranean).
So the Portuguese used this opportunity to set up a giant racketeering operation. You either pay your 'protection' money, or your ships get sunk. The Portuguese did this throughout the Indian Ocean and quickly started making beaucoup bucks by acting like glorified pirates. Portuguese became loathed as nuisances or parasites throughout the region for that reason.
Portugal also took advantage of this to seize coastal cities that were naturally fortified towards land(that's where all the enemies historically came from), but not for the seas. So it became a very straightforward operation for Portugal to seize lands such as these because toppling cities without defences aimed at their specialty(the seas) was trivial, especially to then reinforce existing fortifications towards land-based attacks.
So go on OP. Tell us more about how the magical Iberians were ubersmench