What you don't understand is that I'm not supporting every doctor in the world nor every scientist. I support something called the scientific method. And besides, that idea that cholestrol leads to heart disease is much less prevalent in academic circles than it once was. Not all doctors and scientists are idiots. People need to be skeptical of what they hear until strong evidence is apparent to them.
The current picture that I see that the evidence points to is that dietary cholesterol has little to no effect on heart disease risk markers and the effect of saturated fat seems to be a question of dose, context (eg. deficit or no deficit, low carb or high carb, low fruit/veggies or high fruit/veggies, high fiber or low fiber, genetic susceptibility or no genetic susceptibility, etc) and effect.
On the pH thing, I'm still under the impression that it really isn't true. There may be some truth to it, but as far as I know blood pH stays between 7.3-7.4 and as soon as you move .1 or .2 out of that range, you will be hospitalized and be at risk of dying. In terms of the stomach and small intestine, the pH remains relatively constant as well no matter what. Still, there may be a possibility that the acidity of the food being eaten may have some sort of other effect separate on it's effect on body pH that may act as a signal or something a long those lines in the body (I haven't seen evidence for this however).