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This is a question that does not have a clear answer. The concept of a people is not well defined, and therefore it can be defined as yes or no. It is simply a matter of definition. It is clear that there was inter-communal Jewish cohesion, and there is certainly room to treat this as a national definition. The fact that there is no territory and no common language (although the Holy Language was shared by most of them, in the prayer book and in the Bible, for example), is a useful characteristic but not necessary. When there are other cohesion factors, it is also good. But these questions have no basis in fact and are not interesting. As stated, they are simply a matter of definition. Therefore, there is no harm to the Torah or Jewish thought here (especially since there is no such thing). In general, the truth is not supposed to harm the Torah, and therefore the only important question is whether it is the truth and not whether it harms someone or something.