You really need to educate yourself better before trying to make unfounded suppositions into fact. Tom's pretty much laid out why your positions are wrong and all you do is dig yourself a deeper hole. There was nothing "rountine" about syncretic practices; those were rooted out when detected. Santería and Vodoun are not Christian/Catholic practices and the Church purged of its list of saints sometime back anyone suspected of being tied to such practices, in accordance with long-standing policy. To claim otherwise is to engage in fallacy.

Iconoclasm was not a serious matter for the West (the Western churches being more or less indifferent to ikons compared to statuaries) and the matter was more or less resolved centuries before the Great Schism. That split was, as Tom said, due to a host of other factors much, much more significant (I suspect iconoclasm wasn't on the agenda then) than how ikons were to be venerated/not displayed. It might behoove you to just for once shut up and listen to someone who has more knowledge than something half-(mis)remembered in some high school history text (for the record, none of the texts I've used over the years taught anything of the sort when it came to the Great Schism. Must be a Texas state board insertion somewhere ).