I definitely believe in biases against men. Expecting men to be 'masculine' in traditional ways hurts men. Expecting men to carry financial burdens for families hurts them. Expecting men to be emotionless hurts them. I hold that these issues among others come from the patriarchy and toxic masculinity, both of which are supported and spread by men and women alike.

I expect that when you say 'Toxic Masculinity' you aren't just talking about expectations of men, but rather specific traits that men often carry. I don't believe these traits are limited to financial burden or how we handle emotion either. You left the really juicy bits out. Do you want to know what harms men? Not being accepted for who we are. You presented these 'biases' as if this is a cultural issue but it's not. Men may be aggressive but it enables us to be protective. We may be competive but it enables us to support others. Men may not show their emotions all the time but it enables us to seek out the best solution. But most of all, men don't have to be any of these things. /r/menslib is harmful to men, it's just replacing one set of cultural expectations with another. It's not a safe space but rather indoctrination into male guilt for having traits that are not deamed acceptable.