You are mostly right. I think Q is vastly overstating how the left will react, and vastly understating how the right will react.
I've said before that Q is holding back because he is afraid the right will summarily execute the evil fucks, and ANYONE that tries to protect them (even if to just hold a trial).
That particular part of the plan will fail. They know it too, else why would Q comment that they wouldn't be able to walk down the street?
In my opinion, they are just delaying the inevitable, though admittedly with good intentions. (Less lives lost/destroyed).
I don't think that Q realizes that even Trump supporters are saying that it looks like evil people are getting away with evil things. Remember, it's not how well you do a job, it's how well people think you do a job.
The razor thin line they walk is this: can they complete the plan before regular people decide justice isn't going to be served unless they revolt? Some days I think they can, other days, not so much. It would be easier for the latter to happen, but it takes shit getting real before people will wake up.