Not every chain split is a 51% attack.

Sure, some chain splits fail to get any significant support, so they don't reach anywhere near 51% of mining power. This one did. Hence, it's called a "51% attack".

Nope. None of what you're saying is correct.

Offhand dismissal of some very uncontroversial statements. Cool. Maybe you should stop spreading intentional misinformation and instead do something positive with your life.