Based on the problems with these type of voting processes you would expect that the voting systems would evolve. The unfortunate circumstance seems to be that because the current systems are skewed towards the parties who are currently in power there is little room for change in political environments where only a few political parties control everything.

In a many party system I would think it logical that you can only vote in a primary if you are a member of that specific party. But in the US there is huge political spectrum within the democrats and the republicans that voters should have some influence. Breaking up parties would seems to resolve some of the problems.

The Dutch political system is actually quite good in that respect. It is a many party system. So even though occasionaly bad laws get introduced there seems to sufficient consensus to realize when a law is a bad implementation of an idea.