Will his post be removed? If I respond to the post that you’ve identified as antagonistic, will my response be removed? What is the procedure? Should we ask the poster to rephrase things in an un-antagonistic manner? That seems like the right thing to do, if you’re willing. Then the antagonistic post could be knocked out and we could all move on.
I often leave errant posts up so that others can also see what is not tolerable. If they are particularly harsh or lead or will likely lead to a flame war, I pull them.
In this case, I expect all parties to be cooperative.