I’m just going to copy and paste where I already directly addressed your points at the bottom and related the study to my central point:

If someone believes elections are the primary mechanism of change, ie what makes the biggest impact on the direction a country goes in, then they are negatively correlated with organizing against the system. Why, after all, would someone organize to overthrow a system they believed can be reformed into a just system? Calling representatives and asking them nicely to stop bombing children overseas is still believing that change is something asked for from within the system, rather than demanded from outside in the form of general strikes, boycotts, up to and including revolution.

Feel free to actually respond to my point this time.