That’s correct, they wouldn’t scale or translate (if we just look at the drawing logic in a vacuum).
However, if your points are represented by widgets you can use their screen locations to draw the lines, which should cause the lines to align with the points no matter how the widget is scaled/translated.
Alternatively, if the points are not widgets (and they’re just points in the world), you can project them to the screen and draw lines that way, which should have the same effect, unless I misunderstood something.