Answer:
As a clarinet player who has several friends who are trumpet players I would not want to argue that point with them. Each musical instrument comes with its own set of difficulties and it takes practice and a lot of listening to constantly improve oneself. Clarinet players need to deal with their reeds not always working properly, different/alternate fingerings to help play in tune and listening for an even tone moving through the different registers of the instrument. Trumpet players have their own set of problems and I'm sure you can find a friend to find out what they are.
I am a trumpet player and the difficulty with the trumpet is embouchure. All notes are played with your lips. To understand this more, you should ask a trumpet player in your band to give you a lesson.