You contradicted yourself. You advised him to reduce his or her consumption of beans because they have too much protein for Type 1 diabetics. Then you said you won't have to worry about protein on this way of eating. Which is it?
Actually no I didn't. Your taking my comments out of context.
Beans and other high protein foods can easily be eaten in amounts that may be deleterious to those with Type 1 diabetese. I did not advise him to reduce his level of bean consumption. I commented that he should be careful about eating lots of such foods.
However, within the context of the McDougall program, when properly understood and followed, limits are placed on the eating of beans/legumes and thus they wont be an issue. It should always be made clear we discuss the McDougall program here. The OP stated he ate a plant-based diet, that is not the McDougall program. These boards are always in the context of the McDougall program. People that come here talking about their current diet in terms of plant-based or WFPB or vegetarian or vegan or nutritarian or plant strong or anything other than the McDougall program should understand that answers/comments made to posts should be made within that context.