Kim, I hope you don't think that everyone who posted something about SUVs on this thread thinks you are the problem. I think most of us are in agreement that there are legitimate uses and needs for these vehicles.
I think what a lot of us are saying is that many (not all) people who drive large SUVs don't really need them and are doing so for reasons that are not environmentally friendly.
Personally, I don't think a Jeep Cherokee is necessarily a large SUV. But you will have to determine for yourself whether or not your needs justify the vehicle you drive. And the reality is that you will also probably have to pay the cost at the pump for driving such a vehicle.