Perhaps you missed the subtitle: With his unconventional take on children’s television, Mr. Rogers helped redefine the male role model.
The point of the piece: Mr. Rogers provides a model of maleness and masculinity that works especially well for boys and men who feel scared, alienated, or attacked by society. This model, rooted in love, contrasts with other models for that subpopulation that ground out in anger or hate.
In other words, the very thesis of the piece is that there is a salient relationship between incels/mysogyny and Mr. Rogers: the latter provides an alternative to the former.