Most programming editors rearrange the white space of the files they open. Some do it more, some do it less.

Rearranging white space in a YAML file often destroys information.

Mine do no such thing. The only whitespace that gets stripped in /any/ editors I have are trailing whitespace and extra whitespace before the EOF, and that's only in certain IDEs where I have consciously enabled these options. They are disabled by default.

Removing trailing whitespace should never change the logic of a file in general, but as for YAML it certainly doesn't. And editors should never remove leading whitespace... who does that?

Can you name an offending editor as an example?

Press tab on a line in emacs, and the whitespace will get rearranged. It's more explicit in vi, but don't bother (un)indenting blocks there either.

Just writing characters anywhere a file on the MS IDEs I've tried is enough to rearrange the line's whitespace, while the Jetbrain's I've tried are more conservative and won't break lines you haven't changed somehow.

Ok, now show me a single editor that doesn't make whitespace changes when you press tab.

I've only ever had issues with vim messing up whitespace on the line I'm typing specifically with regard to YAML, and yes that's an issue but it has nothing to do with YAML. For example, Adding another colon to a string, wrapped in whitespace or not, will often reduce indentation. That's just plain bad behavior, but it's not intended behavior.