Feed the life supporting an idea until entities become self-sustaining, and they will fight for survival whether they are good or evil for Society. Examples: The abortion issue, climate change, gender identity, illegal immigration, drugs, etc..
There are organizations and businesses dependent on all such entities continuing--both for and against.
So it is with all of Society's good and bad entities. As Society
grows, the number of such entities grow also. This gives Liberals/Progressives,
whose bible is the "Rules for Radicals", an almost unlimited number of
opportunities to create their power base.