That's fair. Israel's parliamentary system is famously dysfunctional (perhaps because they don't have a solid constitution) and systems like the UK and Japan are also moribund in many important respects, partly by design.
The UK is a bad example of a parliamentary system, because it's even older than the US and even more systemically broken. Can you believe it, the US actually learned from the UK's system and didn't make all of its mistakes (though it did make some bold new mistakes).