Before human civilization had advanced, humans wandered in bands or groups looking for food and shelter. That was the only way humans could survive. Individuals would not survive.
As long as individuals were a part of the group or the band, they could stay alive.
Contributors stayed in the band.
Once a human stopped contributing to the band, they were left behind. That rejected human became prey and lasted less than 24 hours before they were eaten.
Some of us contributed by finding food, keeping everyone sheltered, protecting the band, etc.
Others did not contribute. They tagged along. As long as they were perceived as "important" to the band, they stayed alive.
It became engrained into those peoples' DNA to always be IMPORTANT so they could survive.
This engrained desire to be important is now a compulsion for liberals. The liberals latch on to a cause....like.... Global Cooling, and have a compulsion to lead or push their cause onto others.
With a cause, no matter how absurd and intellectually vacant, the liberal feels IMPORTANT........so they can survive.
All you liberals are just tag alongs.