The Dems' benefit from party disciplined established by their former party leaders. Understand, they had battles too when they became the majority long ago. What we see today is the prevailing ideology that survived. We're in the midst of a battle with RINO's trying to seize the reins they haven't earned. the only way to defeat them, is to expose them and defeat them in the public arena. That will send a stark lesson to anyone else that seeks to follow their path after it's happened a few times.
But, as acknowledged, you need someone willing to get dirty and bloody in this battle. There is no Delay in the Senate.
Do you have any insights into how they established it?