I am planning to burn down my friend's home in Minecraft.
Why would you burn down their home in Minecraft?
He told me not to, but my house is better so I want to anyways.
Destroying something that your friend worked hard on would hurt your relationship with him severely. You should instead burn down something that neither of you made, perhaps a pre-created home from within the game? This way you don't have to hurt your friends feelings and can still destroy something.
I think it will be fine.
You will make your friend upset doing that. Imagine if they burned down your home in game? Try to prank them another way in the game so that the both of you can have fun instead.