Sorry, Not Sorry
There are two kinds of people in the world – those who’d happily apologize just to end a fight and avoid confrontation and those who “would rather die” than to admit they made a mistake. You will find a lot of the second kind especially on the internet where it’s easy to hide behind a keyboard and type whatever you want.
These types of people are so stubborn that even after someone proves them wrong, they won’t budge. In fact, if you ever see someone apologizing online, do send them our way because those kinds of people are rarer than double rainbows and volcano lightning.