It doesn't really matter-
His point was that people are getting cancer because of the lack of phyto/micro nutrients from fruits and veggies-
That point in his video was totally implied too- basically he said "if they are eating a lot of meat then they probably aren't eating a lot of fruits" that's him building bridges.
I've actually read and researched quite a few peer reviewed studies on the matter and there is a direct correlation between the intake of animal proteins and fats and the prevalence of certain types of cancers... And it has nothing to do with the body being alkaline or acidic.
He may be a well respected member and that's great, but still his video was full of assumptions he was proselytizing.