All voting systems have flaws

[jack]

All voting systems have flaws. It's been mathematically proven[1]. That means, pointing out (very significant) flaws in the current system is a good argument for change, but every time I see someone doing that, while I know why it's so valuable, I always see the implicit "and whatever alternative proposed system will also have flaws, but they'll affect typical british politics much less" afterwards. And I think that's probably TRUE with the current decision, but I'm acutely aware that WHICHEVER way people wished to persuade people, they could probably dig up unpalatable examples, so the mere existence of a flaw is a good propaganda tool[2], but should be recognised as a propaganda tool, not a complete argument.

[1] Well, sort of.
[2] Which is a natural part of politics -- something needs to counter "I'm comfortable with the current system and scared of change" on an emotional level, and "why it sucks" is a good choice.