"The red cross is a powerful symbol of neutrality, impartiality, humanity and hope. Please help us protect it!"
They have redefined the cross, which to Christians, is the symbol of God's love for us, and the hope of healing and salvation, and therefore the driver for the origination of the organization itself - to be the hands and feet of Christ.
They have stripped it of its original meaning (for laudable purposes btw), and now are concerned when others do the same...