Nationalizing elections would basically cement first past the post as our permanent voting system forever since it's extremely unlikely you could convince everyone in the U.S. to change to a new one at once.
Do you have a source for that?
Especially the point about bicameralism? I think in a federal system, having something like the US or Australian Senate's is useful in it prevents the smaller states from being dominated by the bigger ones. Leaving smaller states feeling politically powerless can encourage separatist/independence movements and threaten the long-term viability of the country.
https://messaging-custom-newsletters.nytimes.com/template/oa...
Edit: here's a reprint in case that first link (from an NYT email newsletter) doesn't work:
http://www.barcelonaradical.net/info/12380/the-democracy-ref...
Leaving smaller states feeling politically powerless can encourage separatist/independence movements and threaten the long-term viability of the country.
Do you have a source for that? Proportional representation does seem to solve for it. See also: far right parties gaining seats in Germany.
Their views get heard (if not enacted), no one secedes, and the system remains stable.
For the benefits of federal bicameralism, consider the UK – England has almost 85% of the population, and so in a purely one-person-one-vote system will always outvote the other three constituent countries. The UK does have bicameralism, but non-federal – the House of Lords does not directly represent the constituent countries, and does not provide a mechanism to block an English majority – the majority of the House of Lords is English too. And I think this is one of the major factors driving the Scottish independence movement. If the UK had a system more like Australia – with an upper house providing equal representation to each part of the country, regardless of population, and with constitutional referendums requiring a double majority to pass (both a majority of the national population, and also a majority of the population in a majority of the states) – then I don't think the Scottish independence movement would have anywhere near as much steam as it has.
And yet, the United States does not preach this model when helping to propagate democracy abroad. Tellingly, they don't include:
- first past the post elections,
- bicameral legislative branches, or
- electoral colleges.
We're operating on a model that our own State Department discourages other countries from adopting.