You are describing a set of dynamics that lead nowhere other than violence and total and complete breakdown of the polity. If you are correct, then nothing matters, everything is fucked. You won't get what you want, but neither will anyone else.
My preferences, while possibly futile, are least an attempt to not just accomplish short term goals but to fix the broken dynamics of the system. That is, in my opinion, far more important than literally any particular policy goal. Policy progress is pointless in a broken system, so fix the system first.
It's possible that my view of focusing on fixing the system, restoring institutions, erecting new guide-rails in places we have observed that the old ones don't work, etc. won't work. But at least it has a chance of producing a good outcome. A good outcome literally can't come from the kind of political behavior you describe. You want your side to seize as much power as it possibly can when it wins, enact as much "good" as it possibly can in however long it can maintain it's grip before the political tides inevitably swing and you lose power again. You don't seem to realize that this is what we have been doing for at least several cycles now. And what we have seen is that the next administration just tears up the progress, does the same thing except in the opposite direction and even harder, and does what they view as "the good thing" and which your side views as nothing but unmitigated evil (the same way they viewed you and yours when you were in power), and so the both sides have accomplished nothing but pushing the pendulum a little bit further, giving it a little more momentum, and shredding up the social fabric a little bit more.
I'm not so naive as to believe that it is possible for just one side to say "no we won't do that, we will unilaterally disarm". But I am of the belief that, if one wants to pretend that one is "on the side of good", that the only rational action is to, when granted power, to spend as much political capital as is possible to slow down the pendulum, tear back power from the bloated executive and the federal branch more broadly. Stop trying to enact your political project and instead make your political project nothing other than the restoration of the norms and principles of the constitution.
This is not something that has been tried and failed. it's the opposite of the past 50 years of federal political dynamics. What has been tried is your plan of "fuck the other side, they are evil, just do what our base wants and ignore consensus and norms".
It doesn't work, it won't work, and it can't work. It's destroying the country.
From my perspective, you are no better than the side you hate. You may want different policy goals, but both you and your polar opposites are collaborating on a shared project: the destruction of the country.