Maui update program 2 wiped out plasma 5 and all programs

[leszek]

Dolphin file manager does not work in root mode

This is done for a particular reason as it is a security thread.
Graphical applications should not run as root as they open a whole door full of potential bugs and features that can be used for exploiting your installed system with root rights.
Instead KDE decided to follow the more sane procedure to only allow certain operations as root. So for example kate will prompt you with a password prompt whenever you want to write to a file which is not writable by the user by default.
So the whole application with all its features does not have to run in a root context. Only the saving or opening procedure is requiring root.
From the security point of view this is a far far smaller target for potential attackers to exploit and such the most ideal solution to avoid security risks.

Root Action Service menu is for copying files to root locations for now in Dolphin until policykit is integrated in Dolphin to allow copying files and folders to locations were the user has no right to write to (it will then popup a password prompt).

An attempt to uninstall Dolfin leads to pulling it behind and uninstalling plasma5. Here's the picture

That looks a bit strange though its is just removing meta packages here.
kali-desktop-kde seems to depending on either dolphin or kde-baseapps or one of the other packages instead of only recommending it.
I don't know kali well but it might be worth reporting this as a bug.
In general I can tell you besided removing dolphin and konqueror you are not removing the plasma desktop as this package is usually called plasma-desktop.
It is a bit confusing granted and we suffered from this issue in the past aswell and learned from user feedback that this might look scary.