Divide and ......Florish?

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I have to start this post with a gripe. There are these cliched statements that I fear makes people think a certain way, and makes them unable to see otherwise. Statements such as:

Poor and ignorant. There are many countries where the population, even though they are poor, really strive to get an education.

Divide and conquer. Once there is division, conquering is inevitable? Always? I could tie this in with Hassadim and its constant need for unity, but I'll not.

I think there are instances where dividing is useful. I read a book a while ago called Eating Right for Your Type. It is about the various blood types and what food is better for what type. For example: a type O can handle meat very well, but not bread. A type B can handle dairy products the best. Type A is recommended to be vegetarians, etc.

Plus, learning about the Enneagram can help one point out their various strengths and weaknesses. It can also help pinpoint typical pitfalls in relationship issues and help one to avoid it!

Not to mention my "race" and gender, all these parts and divisions only help me to see the real me better.

So, is it wrong to have these cliched statements floating around? Maybe those are the typical groupings, but I hope folks realize that there are different.