Human Mary wasn't good enough for the Church, so they made an idol of a goddess, dressed it in fanciful stories, then claimed through infallibility that all must believe the fantasies.  Thus, they dishonored Mary, and blasphemed by telling people it was not enough to believe in Christ: Christians must also believe Mary's corpse was taken physically to heaven.  And now stunted little men run about worshiping the Mary Idol and saying silly things about women.  But, since they are infallible and hold the keys to the kingdom and can lock us all out, we'd better just play along.  We don't want our dissent to go on our permanent records, after all.