Sure it can. A large vehicle is more likely to kill someone outside of the car. So, by unnecessarily choosing to purchase a large vehicle, you are needlessly increasing the chance of killing someone else.
Not to mention the climate impacts.
To be clear, the fact that you want a pick up truck can’t be debated, but whether you should be allowed to purchase one and use it on a public roadway, solely because of your desire to have one- is another thing.