It's code for above-the-median-wealthy, enough to influence opinion outside of the populist opinion. Why you choose to go partisan over a systemic issue, is beyond me.
- religious groups wanting faith-based educational programs
- farmers wanting crop subsidies (hugely powerful in the US)
- internet users wanting net neutrality
- conservation groups wanting to preserve parks or endangered species
- unions wanting occupational safety regulations
- retirees wanting increased social security
You might even agree with some of these.
http://www.dictionary.com/browse/special-interest-group
a body of persons, corporation, or industry that seeks or receives benefits or privileged treatment, especially through legislation.
Wouldn't that only be true if preferences are roughly normally distributed (or some other fat-middle distribution)?
And if that's the case, shouldn't the outcomes of the voting system tend towards a moderate middle?
Approval voting allows voters to vote for 3rd party candidates without "throwing their vote away". That would be a huge improvement over first-past-the-post, as 3rd party candidates would have a decent chance of winning if they can make a compelling case to voters.
At the extreme end, a legislature consisting of communists, anarchists, facists, theocrats, and hippies wouldn't accomplish anything but igniting civil war.
I would think all those groups together would only make what, max 20% of the US electorate? In a proportional system, they would still be a minority of the Parliament. And the internal disagreements within that minority of the representatives would prohibit them from joining forces and using even their 20% of the power. The rest 80% could mostly just ignore those fringe groups.