Learning a second language AND professionally teaching English to speakers of said language. English is not broken. English is actually much better than many alternatives. We don’t need to worry about noun gender. We don’t have to worry about tones. We have precise ways to indicate number and time. Formality levels are not baked into word construction. The pronunciation of words can generally be inferred from the spelling, despite learning this skill being a little complicated— but that complicated nature even has its usefulness.
We rag on English, but it is by far not the worse out there, not even close. It’s just contempt for the familiar.