I don't think anyone is stupid, including people with severe learning disabilities. People do all sorts of stupid things, but I think to explain that it's not 'stupidity' or 'sub-average intelligence' that you want, but generally just ignorance. In this case, there's also trust(ingness), which I think is actually a good quality, even if completely misapplied and quite dangerous in the case of demagoguery and/or irresponsibility in power.
I don't think anyone is stupid, including people with severe learning disabilities. People do all sorts of stupid things, but I think to explain that it's not 'stupidity' or 'sub-average intelligence' that you want, but generally just ignorance. In this case, there's also trust(ingness), which I think is actually a good quality, even if completely misapplied and quite dangerous in the case of demagoguery and/or irresponsibility in power.