It's cute that you think fan sentiment has that much impact on the personnel decisions of a professional sports franchise.
I've been as frustrated as any Kings fan across the last decade. I was a freshman in college when the last of the Rick Adelman teams got physical with the Spurs in the first round of the 2006 playoffs. I watched the Kings lose game 6 of that series in the community living room of the dorms. Since then, I graduated first with a B.A., then with an M.A., worked a half-dozen sh*tty jobs, traveled the world, eventually started my career, and married the love of my life.
Through all of that time and all of that change, the Kings have remained terrible. No amount of protest on my part was ever going to make a bit of difference, though protest often I did. Hell, I left in a huff when Demarcus Cousins was traded, and nothing changed except the Kings' luck. They landed the 2nd pick in the draft despite their inability to fully commit to "tanking." It turns out that timing and the twists and turns of fate will always matter more than anything the fans might say or do.
The fans could boycott the team en masse for an entire season, and who knows if it would actually result in meaningful improvement. There are so many factors that lead to a small market franchise's success or failure, though bad stewardship and bad management are certainly among them. As with all things in professional sports, the fans don't really get much of a say. Owners and GM's will defer to and acknowledge the fans when speech time comes, but their decisions ultimately exist in a world apart from ours. We're just along for the ride, for better, and for worse. And hey, things seem to be swinging in the direction of "better," so I'll count it as a win.
After all, to be a Sacramento Kings fan is to know pain. They've been in this town for 33 years, and they've had exactly eight winning seasons to show for it. The Kings fan doesn't root for the Kings because they expect a winner. The Kings fan clings to hope against all odds, and that makes the Kings fan mighty. Let's not pretend that striking a haughty, "no excuses" kind of posture is the only acceptable form of fandom to adopt, especially when it doesn't actually
do anything.