[mrout]

You aren't learning Korean. You are learning Hangul. You don't just need to learn 'the Korean words'. You need to learn Korean lexicon, Korean syntax, Korean morphology, Korean idiom, Korean pronunciation, etc. etc. Those are the actually difficult parts of language.

Learning the Latin alphabet doesn't mean you have learnt to read English.

And sure of course you can learn the Arabic alphabet quickly. It's a lot simpler than it looks.