One is, that humanism is essentially an outgrowth or consequence of Darwinism and/or philosophic naturalism. These people are basing a comprehensive worldview on a scientific theory that, if I understand it properly, is largely unproven, unprovable and quite possibly way wrong.
Secondly, is the Marxist/socialist attributes of the overall philosophy of humanism.
Why are socialist tendencies and humanism always closely intertwined?
Brian.
by products-Sera Club,PETA,Green Peace,etc.