I see what you're doing. I guess I wouldn't use guide lines (c-lines) for that in the first place. Guides are intended as temporary lines and not as geometry.
Presumably you have made a component or group of the drawer front and bottom and so on. A simple left to right Selection box dragged around the c-lines for the drawer side will select them without problem. and then a keyboard shortcut can be used to make the group or better, a component.