I spilled soy milk on my nintendo switch
What caused you to spill soy milk on your Switch?
I'm feeling rebellious and I want to get rid of it
You shouldn't break things when you're upset, especially expensive things. Instead, you should find a productive way of expressing how you feel.
I'm going to try to return it and demand a new one since it can't play switch games correctly anymore.
You damaged the system on purpose so it's not right to try to return it after you have done that. Instead, you should buy a new one and take care of it.