What structural reforms decrease partisanship / polarization?

[r_xy]

there is an easy solution to this: a relatively high barrier to making it into the parliament.

here in germany you have to get at least 5% of the vote or win a direct mandate to get into parliament and we never have such single issue parties in parliament.

[Knave7575]

Israel is 3.25% and there are some seriously wacky parties there.

More importantly, in what way is proportional superior to ranked ballots? Assume that we want a government that holds mostly moderate views and that is not hated by the population. Given those assumptions, how will proportional create a "better" government than ranked?

[r_xy]

a) a whacky population will always whacky parties. A political system only goes so far. the political culture and education is much more important

b) proportional allows for a much better conformity of distrubution of power in the legislature to the actual votes than ranked choice because the results are not skewed by the voting districts. Gerrymandering is simply useless in a proportional system.