I think you're right, Kaytee. The stuff is really hard to avoid, particularly when you start getting down into micro-ingredients
If there were more vegetarians there would be less abundance of stupid, stupid animal ingredients like gelatin and other such things. These meat-industry by-products wouldn't exist and it would be too expensive to inject them into foods and other products... Instead, cruelty-free, non-animal sources would be used.
Ending the killing cycle by refusing to fund or consume animal products (and encouraging others to follow) is the most effective thing we as individuals can do to reduce the number of cruel animal ingredients that are used commercially. It has a domino effect.
I try to avoid anything that I know has any animal ingredients in it, but won't quiz a waiter with 20-questions as to the ingredients of a bread roll because I know it only makes being veg or vegan appear to be difficult and complicated -- which in the long run hurts animals rather than helping them.