The WAP isn't right about everything, but they're an amazing resource for someone who is just beginning to learn about "real food."
As for the claim that they're funded by the beef and dairy industries, this seems to be a baseless accusation that originated from the vegan community, especially Dr. Joel Fuhrman. If you have any evidence regarding this, I would be very interested!
I have posted evidence in the past straight from the Weston Price Foundation website. I address this in this post, but I recommend reading the whole thread since it exposes a lot of the false claims by the WPF:
OK, I see what you're saying. The WAPF isn't a commercial entity, so they rely on donations. Some of those donations come from small-scale, independent meat and dairy farmers (and likely from larger co-ops like Organic Valley).
However, it's a bit misleading to say that they're "funded by the meat and dairy industries." It's not like they're getting money from Tyson, Purdue, and Dean!
I agree that they put a lot of emphasis on animal foods. However, they are filling in a large gap. After all, there are tons of people out there extolling the virtues of whole grains, veggies, fruit, etc. This is "mainstream advice." There are fewer people out there talking about butter vs margarine, pastured meat vs conventional meat, pastured dairy vs conventional dairy, benefits of bone broth, etc.
Are they right about everything? No one is. Do they provide valuable information? No doubt. They've played an integral role in the "real food" rennaissance.
As for soy... this is a big topic. I'm Asian, and I've eaten soy all my life. I love soy. Soy is considered a sacred food in Asia. However, it isn't eaten in large amounts. It's eaten more as a condiment. Maybe a tablespoon of miso, or a few pieces of tofu.
Asians didn't start eating soy until we learned how to ferment it. These modern soy foods like soy milk and soy burgers... Most traditional Asian people would never eat these!
They can do 1000 studies showing the benefits of soy or 1000 studies showing the dangers of soy. The bottom line is... Soy is considered to be extremely healthy among Asians. HOWEVER, we don't eat large amounts of it. Who knows why? "Goitrogen" and "phytoestrogen" are modern words, after all. But I do think that centuries of cultural tradition count for something.