Tried to buy a truck awhile back and the salesman ...

Tried to buy a truck awhile back and the salesman started with a higher than expected monthly payment. I asked to get ones better to my budget and not to add on packages into the plan. He comes back with an even higher plan, but with out the package. I asked to stop doing this and aim for my budget price and he comes back with the same monthly plan as prior. All the while slipping in he could lose his job if he doesn't sell today and he's new to the dealership, as if the sympathy is to sell me.
Why didn't he sympathized with the concerns of my sale? Was he trained to up sale and belittle the customers? This insults my intelligence and shows the practices they implement at this dealership. I went in wanting to negotiate, even put my paid off car and cash down towards this truck to get it into my payment range and they got greedy and saw a sucker to pull a fast one on.
It dosnt matter what they say to this action, if they see you as a mark they will exploit you for profits because that's what you are, a walking bank account.
If they cared, they would do real business with you and come to a compromise between both parties by finding a profit they can be comfortable with and a monthly payment/price I could be willing to invest in.