You think they’ll stand up for Palestinians when they won’t for their own diplomats?

Can confirm at least one

You can although that is uncommon.

The SA president seems amused if anything

If they intentionally murder a foreign diplomat that country would very likely to militarily intervene, Israel or not.

This would be entirely unsurprising to the majority of people outside the US

The diplomats are antisemetic for being shot at

If they do it wouldn’t be Finland anyway

Both Sudans are facing active conflicts and humanitarian crises yes, but Sudan (ie the North) which you are likely referring to due to recent media coverage is a separate country to South Sudan which split from it a decade or so ago.