[Switch] Deleting multiple people from friends list

[Bolty521]

I’d like to know if there is a easy way to delete people from my friends list. I have many on the list who haven’t been on in years. My list is so full I can’t make friend requests any more. I can except requests but when I inspect a player the add friend is not displayed. It is very difficult to delete manually. Sometimes I accept requests but the new friend doesn’t show up on my list though I show up on their list. Very strange. I am playing on Nintendo Switch.