Let us deactivate, change, delete or merge our primary email addresses
let us change our email addresses or merge them, or let us keep the secondary address and delete the primary email address)
My primary email is infected and I have never used it for a decade, it is just being spammed nonstop.
Let me deactivate it at least without receiving any email.
You could set up a filter on that account to direct all incoming email to the Trash.
Alternatively, you could delete the linked address and re-create it as a new account going forward.