I just can't understand why someone needs to be "high" in order to pray for God. Most of us do fine without anything. Some actually fast before going to church.
I never tried hosaca and don't need to. These people, if I understand correctly, feel that God gave them the plants and God helps them communicate with Him through using the plants. If I had grown up in that culture, I probably would accept it as I now accept transmogrification and Communion wine.
These guys are not party animals; their use of the stuff is in a limited, specific, narrow way that I don't think crosses the line into "getting high" or "abuse". They use it as a sacrament and an adjunct to understanding trancendant issues. I can't see making them change their established religious practices to stay out of jail and keep their property (or be forced to leave the USA, because God showed them a particular way to worship).
We probably won't see eye to eye on this, Coleus, but that's OK, it's a big world (and thank God for Free Republic, where we can discuss stuff like this).