The left’s chief doctrine is based on feelings.
Actually a more accurate statement is "what the post-modern Left hates and destroys."
The modern left (over 200 years ago) still respected and valued reason and logic. It is the post-modern left that despises it.
The West was based on rationality. That went out the window a century or two ago, when we decided that we would accept anything, no matter how irrational, as a substitute for belief in God.
The Democrat Party Cabal wildly objects to any such assertion. Instead, the Democrat Party Cabal insists and demands that "The West" (and all its politics and political actions) shall be based on raw out-of-control emotions.
The Democrat Party Cabal also insists and demands that there shall be no objections. Otherwise, censorship and cancellation ... or worse. Got it? Good.