Edit: now that I have looked at your other posts i realise you are not ranting just posting some nice low poly shots. Just goes to show how easy it is to misread things when you can’t hear the tone on the words. I’ll leave my reply as is anyway as it is mostly relevant.
I’m not really sure of the point of your post, to me it reads like it is trying to be a rant but doesn’t quite get there. You’ve stormed in and described how you use sketchup, in a very normal way. Was there a question or a specific point you wanted to make?
It reminds me of the time 30 German police stormed into my building with dogs and guns, the rushed up the 7 flights of stairs and came to a stop at my neighbour’s door completely filling the narrow staircase with big beefy bodies. They knocked loudly. Nothing… They knocked again, they knocked a third time and said very loud and forcefully “This is the police, open the door now or we will be forced to get a locksmith…at your expense!”
Kinda takes the wind out of your sails when the follow up just isn’t there.
I guess your point is that everyone should be working low poly because that is all that is needed… for your specific workflow.
In truth, you’ve sort of nailed the main point of Sketchup, it can be used for many many things and no one workflow is the correct one.
For you low poly is what you need as you make general overview sketches. For others they need low poly in certain areas but then a high poly coffee cup because they will do detail shots of the coffee table. Others need only high poly because they want the smoothest finish possible on their 3d prints.
There are many other possible scenarios that affect the poly count, no one poly fits them all. It sounds like your colleagues would benefit from understanding your low poly workflow, perhaps you could organise an inhouse seminar focusing on the pros and cons of various modelling methods and how to optimize your workflow.