Journal editor made bad edits to my (accepted) paper - how do I respond?
I finally received proofs of the article, and was (more than a bit) upset at the edits. 


How to respond?  Do not respond while upset.  Wait until you can respond in a calm way.

This is a perfectly normal occurrence.  Remember the journal relies on getting your work for free in order to get subscription fees to pay its expenses.  They need you more than you need them.  Do not hesitate to ask for anything that will help your publication improve.