It is possible none of us will live to see Czechia vote against the interest of Israel as all parties support it and there is pretty much no organized pro-Palestine movement. Israel says we’re their top partners in the eastern hemisphere, which means a lot because most countries are in the eastern hemisphere, including itself. At least, aid toward them is not nearly as popular among politicians and citizens as for Ukraine (we have a sizable, well-behaved Ukrainian minority already and took the most refugees per capita at the height of the crisis).
As for why pretty much every politician is either oblivious or bootlicking Israel: see my comment under a post about the shredder escapade 4 months ago
Well, that’s why I kinda sorted the list by “relevance”. Still, you should at least mention top 5-6 opposers if you’re going to bother with any abstainers.