The system you describe is exactly what is happening in the primary. Each party is free to endorse who they want in the primary to "consolidate" their vote and every party is free to run whoever they wish. The top two get a vote from everyone. I don't see what your objection is. It sounds like you want legislation to protect parties that can't control their membership and end up with multiple candidates. I don't see why the state is obliged to do that.
I thought the reasons I objected to "Jungle Primaries" were pretty clear. If not, I will attempt to clarify myself. The top two vote getters in a "Jungle Primary" does not
guarantee one representative of each and every political party to be on the ballot in the general election. Only the top two vote getters will be on ballot in the general election. That could be two democrats running against each other in the general election with no
republican on the ballot. That could be two republicans running against each other in the general election with no
democrats on the ballot. In this most recent California primary there was a fear that the republicans could potentially have the top two vote getters in some of these California primaries because the democrats had so many candidates which would cancel each other out. The republicans could have been the top two vote getters in some of those primaries because they had fewer
candidates which meant there votes were more consolidated
while the democrats votes were more diluted
and spread out among multiple
The biggest fear in this most recent California "Jungle Primary" was that the democratic party could have potentially gotten the higher primary vote total over the republican party and still not have a democrat on the general election ballot. The potential for some of these seats was that the republican party could have had republican running against republican in the general election while the republican party got fewer
votes than the democratic party. I am thankful that scenario did not play out that way, but the potential of that happening was very real in this most recent California "Jungle Primary"
Unlike the horrible "Jungle Primary", the normal primary format keeps the political parties primaries separate from each other to ensure that each party will have one and only one nominee in the general election.
That also includes smaller political parties. Green Party, Libertarian party, and any other political party.