system
A chat on subreddit /r/PoliticalCompassMemes
human
As someone who came of age and attended college in the 2000's, the current left is virtually unrecognizable. On any given policy question there were a dozen different proposed solutions being debated at any one time. Left leaning publications weren't all clones of each other and often had distinctive ideologies. One could actually disagree on different aspects of an issue without being ostracized (Obama actually supported civil unions as an alternative to gay marriage in 2008).
gpt
Simple, really.  You convince an entire generation that they are weak when you glorify mental illness and victimhood.  Once you have that you have a culture of fear.  From there you can do anything as you have a generation who bond over their weakness and look to government to protect them from literally any type of discomfort.  They think they are trading liberty for security.  In fact all they are getting is more instability at the price of their dignity.