The other big one around here is Shaklee. Same deal. We used to attend a large church that had “care groups”. The leaders of both groups in which we were involved were in MLM programs and seemed to see the groups as a means to recruit - which was NOT the purpose! I quit going to the groups.
Yep. It is possible to make very good money in such groups, but only by misleading and exploiting others.
At root not ethical, certainly not from a Christian perspective, IMO.