Wow, I was not expecting this tone policing bullshit from you.
But no - what is abrasive is saying "humanity sucks" in the face of marginalised people, who have no hand in our oppression, pointing out that oppression. Not calling out someone doing this.
The patriarchy sucks. Misogyny sucks. Capitalism sucks. Humanity, which includes all of the people oppressed by those and other structures created by and for the benefit of a tiny minority of people, who band together and fight for each other and our rights and survival, shouldn't be thrown under the bus because someone doesn't want to, for whatever reason, diferenciate humanity and social constructs imposed on it for profit and control.
Fuck this noise, it's like blaming climate change on "humanity" which puts billionaires who create as much CO2 in 90 minutes as the rest of us do in a lifetime, and, for example, Indigenous people who were genocided and their sustainable ways almost destroyed and continuously overlooked, on the same level of responsability.
All this is is the same old bullshit of blame shifting done by the privileged to deflect it from themselves.
What is abrasive is "all lives matter"-ing marginalised people.