This is such a great summary. I love the definition of Liberal Feminism. There needs to be a way to differentiate. When someone says they're "not a feminist", nine times out of ten they mean they uphold the priciples of liberal feminism but reject radical feminism. Feminists worldwide need to recognize and actively work against the dangerous stain that is Radical Feminism. As you rightly state, it is impeding and even reversing a century of worthy gains.
One disagreement, I think the Fourth Wave starts with the term "mansplaining" in 2008. When one insecure academic felt injured that a man quoted her work back to her, she invented an infantile word for it, centered on men, heralding in a whole new world of misandry. "Mansplaining" is the "libtard" of feminism.