” We are not Rebbe’s, but most say that we should not marry 1st cousins. I know and heard of cases of non rebbe’s where there were problems when 1st cousins married each other and these cousins were not from big rebbe’s “
I don’t understand what you are trying to say. are you saying that rebish cousins who marry each other are more susceptible to genetic disease than regular cousins marrying each other? less susceptible? and who is this “most say”?