First shrines tend to be related to ancestral worship, Idols tend to be more polythestic in worship, while the crucifix is a symbol of christs sacrifice, and if there is a God you can't say it's a hypocrit due to the fallibilty of humanity just because someone pledges a cause in God's name doesn't make it true people are easily mislead whether by themselves or by others while some would claim good intention and may very well intended them others simply seek power and control.