As for driving analogy, last time I was going through France, we took a longer and less travelled route, especially to visit some points of interest. So your analogy could be valid if the purpose of the journey is to get from point A to point B in the shortest possible time. Which is not always the case.
Lets stick to this analogy though. If the point A in Elite is the Noobwinder and point B is Federal Corvette or Anaconda, then there are really no shortcuts or no "quick and easy" way of getting to point B, whatever mode you play in. You still need the credits, whether you play in Open or in private group or in Solo. In case of Federal Corvette (or Imperial Cutter if that's your point B), you still need to get to a certain rank with one of the factions. Playing in Open doesn't make anything more difficult. Even people who play Open writing in this thread accentuate that interaction with other players is rare in Open, hostile interaction seldom happens and when it happens it's very easy to avoid.
It stands to reason to draw a conclusion, that since Open is not dangerous and PVP can be avoided, then there is no additional challenge to be found by playing versus environment in the current Open mode. So the difference is that in Open a PVE player can find more annoyance (hardly an appealing gameplay element) and less like minded people interested in doing things similar to what you do.
It makes a perfect sense to me to stick to the modes where I can find likeminded players and suggest Frontier to create an Open PVE mode, so there can be even more interaction between the PVE players. Whether they listen to this suggestion or not, is completely up to them.
Clipper is hardly the best combat ship. Nice ship, for sure, but it has many disadvantages, especially when it comes to combat. One thing you could probably learn from this experience is that sometimes less expensive ships, but more suitable for the job at hand, are better than the more expensive ones. To a degree, can't imagine even player piloted Cobra win with a player piloted Python.
Did FD give players enough already indeed? I'm under impression they are supposed to build up this game and are planning to add new features for about a decade. That's one. Two, it's not like anyone here is twisting their arm or pointing a gun at them. It's just a poll and a suggestion.
As soon as you organise an effective police force to protect all of the systems that should be secure (so you can skip the Anarchy systems in your efforts, together with combat zones etc.), I'm sure many players currently playing in Mobius or solo will be happy to try playing in Open more often. I'd suggest starting with some protection services, like chasing and hunting down a criminal until they pay back for insurance and cargo for the ships they destroyed, and you could take it from there and slowly expand. Organise a police station with a small wing of Condas in every civilized system, then have regular patrols of some cheap ships, like Vultures, combing said system in search of criminals, then add some task force for special operations. And don't forget that in civilized space you will get some support from the local authorities as well. Yeah, player driven and organised Interpol is a great idea, I'm all for it, can even pay 10% of my ingame income in taxes to fund this, no problem at all. If that was possible.
There is just one, tiny issue (well, two tiny issues actually)... We know of slightly below 4k systems (3784). Even if we consider 100 of them to be "secure" and even if you get to the first stage of the plan (let's say 5 players protecting other players per secure system), you need 500 players to do nothing else but to work as convoy security guards in the civilized space. Since you would need them 24/7. Lets say each of them is doing 3h shift, which means you need 4k players to do just that. If you want to add that police station stage, say, 3 Anacondas per system, 300 in total at any given time gives 2.4k players needed. Regular patrols in the systems? Another 2.4k at least. So you need roughly 10k players to successfully police the inhabited space and make it more or less secure.
The most you can do is to create a small task force to chase after griefers and this will always be the case. You may be successful and get few hundred players into one association / guild. But then you are not even going to be able to chase after the criminals, because the system won't put you in the same instance, so you will be chasing shadows. And if you finally find them by extreme coincidence, they can just combat log and here your policing is done.
Online game being policed by players looks awesome. On paper. It's not really possible in any online game (although in many you can actually hunt down griefers, which I've done in the past), and completely impossible in Elite. You would need to form convoy wings with every trader ingame, which again, is impossible. Numbers are not on your side here.
If open isn't dangerous, and it's easy to avoid PVP, why are we even having this discussion. We don't need a PVE mode. And I found more annoying people in WOW than I've ever seen in Elite. Those people are some awful human beings. Elite players, in general, are some of the nicest, most mature players I've ever encountered.