The crucifix itself isn't the weird part; people use symbols as stand-ins for concepts all the time. They celebrate what his death signifies to them: God giving them a way to escape the punishment he's threatened us with as consequences of his own error. How gracious of him, that he made us so worthless, then gave us a chance to win his approval by having someone else tortured in our stead.

The weird part is that they consider the crucifix a symbol of love. "Let's use a torture device as a symbol of mercy".

Christians are, indeed, a weird cult.