Quinoa is nonpaleo for the same reason cereal grains are nonpaleo:  it's an agricultural food that was not available in the paleolithic.  It's also a new world food.

In addition, quinoa has significant amounts of antinutrients, such as saponins and phytic acid.  Like the cereal grains, it is protected chemically against animals that might want to eat it - unlike tree nuts, which are protected with a physical shell.

Google books result on quinoa antinutrients

On paleo, you get all the amino acids you need from meat, in pretty much perfect proportions.  Calories should not come primarily from starch, but rather from fat, preferably animal fat, or if you really want to do high carb paleo, from fruit.

rarose, with all due respect I doubt that you can successfully do the paleo diet if you refuse to eat healthy and nutritious meats.  Going paleo is more than changing what you eat, it is also changing how you think. 

You'll get plenty of amino acids from chicken, turkey and fish. What you won't get is enough fat. Quinoa won't help with that.

If you want to eat starch, white rice would be a safer source, but it's basically empty calories.

I can't eat eggs on the hypothyroid autoimmune diet. It's a lot different than the regular paleo. I also can't eat white rice because I'm hypoglycemic. I do eat sweet potatoes every day, so that's my starch. I can also eat squash and other root vegetables, which are starchy. I've started taking Green Pastures cod liver oil/butter blend, and I eat a lot of avocados and also take krill oil, so that's where I'm getting my fat. Oh, and I use coconut oil when I cook and I put it on my sweet potatoes.

I feel like I can do the hypothyroid autoimmune diet just fine without resorting to meats that make me gag, that I literally can't stand the taste or thought of or that also upset my stomach. The last time I ate beef I was 10 years old. The next time I tried eating it in my 20's it gave me the worst upset stomach. The whole point in the hypothyroid autoimmune diet is to eat foods that are easily digested and will heal your digestive system, so I'm not going to eat food that upsets my stomach.

I'm eating sweet potatoes for fiber as well.  I only eat one a day for breakfast. Aside from meat hurting my stomach, I also have several religious beliefs and personal values that make eating beef, lamb, veal or pork products impossible.

Sweet potatoes are my go to breakfast and my doc said I need more Vit. A as well. I only have about 10 minutes in the morning to eat breakfast, so I need something that's already cooked that I can just microwave quickly. I make a sweet potato and turkey bacon hash (using nitrate free turkey bacon). I make a bunch ahead of time and then just reheat it in the morning before work.

so I need something that's already cooked that I can just microwave quickly.

If you are trying to correct an autoimmune condition you might want to avoid eating food cooked in a microwave. This is controversial and I don't know if there is any scientific evidence, but there is plenty of anecdotal evidence of people feeling health benefits from not using a microwave.