You're absolutely right that there are definitely some people who want a 6th republic but do not vote or agree with LFI, but for the sake of generalized conversation like we're having now they're mostly irrelevant. If it were to happen, it would be through him and his "vision", and as such I maintain my critics.
Beware of what you want for you might just get it.
I am probably not the only one.
Just believe that the country is "ripe for it" because of repeated abuses of the, exceptionally large for a western democracy, presidential powers.
But people have been dissatisfied with that ever since the last constitution was enacted. Including, famously, Mitterrand, who despite his many earlier criticisms (describing the 5th republic as "Le Coup d’État Permanent" [1], which could be translated to "The Continuous Coup") was prompt to fully enjoy those powers once elected himself.
So it’s quite old.
[1]: https://fr.wikipedia.org/wiki/Le_Coup_d%27%C3%89tat_permanen...
It was one of the most important and most protested reform of the last decades and the president / government used every constitutional breach they could to avoid any vote from people's representatives.
Charles de Courson, who tried to force the vote by proposing an abrogation of the law to the parliament is not really a leftist, he was even going to vote himself in favor of the reform.
We, the French, elected a parliament where Macron didn’t have the absolute majority and Macron tries everything he can to avoid the parliament when he know he will not have enough votes. It’s a democracy crisis wether you are from the left or from the right because Macron is interpreting the constitution like he can dismissal the parliament when he wants although most French didn’t vote for his party.
First, this is not "well-educated French acquaintences" so much as it is supporters of Melanchon's LFI political party, who explicitely campaign on the idea of ending the 5th republic to start a 6th where all problem would be magically solved.
Second, the reason I hate his proposal, is because he explicitely refuses to give any specific detail on what the 6th republic would be. He claims it would be "decided by the public" but there is no reason why a pre work couldn't be done BEFORE. In effect, he pretends to be saying "we will end the 5th for a better 6th", but what he's actually saying is "let's end the one we have now instead of fixing it, and replace it with something I will have the power to decide, you must accept to throw it away without knowing what you will get in exchange or how it will be made but trust me it will totally be better and I will totally let the people decide".
Our 5th republic might be flawed, but I'm not putting it in the trash without any idea of what we will get in return, that's brexit referendum level of flawed.
Third,
> the 6th in its history
Would be the 6th republic sure, but absolutely not the 6th "system of government", it would be like our 25th or something ?