You make a good point. Hate must be addressed at its root.
I see hate speech censorship as important for protecting the victims/vulnerable. How can we protect these people without this censorship?
Do you have any favourite examples of how a society can fight hatred?
I spent the day looking for a desktop app that does this and finally found Scribus. The fact that most desktop Linux PDF readers and editors cannot do this satisfactorily does not make me hopeful that such an app exists for Android.