This is well said, and I truly don't want to detract from how well he said it, but I must point out that Obama's brand of messianic populism was a major ingredient in the development of today's cancel culture.
Everyone who criticized Barack Obama was portrayed as evil, driven by greed, racism, or money from their sinister corporate puppet masters. His early statements as president literally included telling his critics to shut up and go to the back of the bus.
Obama repeatedly attacked news organizations that criticized him, primarily Fox News, and unlike Trump's kvetching about a much wider range of media adversaries, Obama implied such criticism of him was a problem that needed to be fixed.
Obama's political machine infamously created a website called Attack Watch that gave his followers a Soviet-style mechanism for reporting friends and family members who were spreading "falsehoods" about his policies.
Obama and his supporters constantly insinuated, or outright stated, that criticism of him was "hate speech." A major feature of cancel culture is the belief that hate speech should not be protected as free speech. It is arguably the core belief of the New Censors.
Obama responded to the Tea Party by treating them like domestic terrorists. Tea Party groups were repeatedly (and falsely) attacked for hate speech. Those attacks were used to criticize their legitimacy as a political movement and their right to participate in public discourse.
If you wanted a sneak preview of what cancel culture would be like, you could have dropped by any of the Occupy Wall Street camps. They weren't big on vibrant discourse or politely entertaining counter-arguments. Their whole deal was forcing you to listen to them by squatting.
Obama isn't solely responsible for the rise of cancel culture, but he did a LOT to make his followers - especially the young people he assiduously courted - feel like righteous crusaders who had every right to shut down heretical speech that threatened their noble cause. /end
