I never was a JW.
My traditional response to JWs calling at the door was to raise 'the issues' - standard stuff. They don't come so often now.
When the ARC was going out live, I watched most of the broadcasts. I was struck by just how poorly the head honchos performed. Here we had the heads of the Australia branch, including its chief legal adviser, and TBH they were risible.
Then Jackson was interviewed (and I noted the shenanigans that went on - and the almost unheard-of apology by the WT lawyer).
His performance was a PR disaster for the organisation.
In future, my response at the door will be limited to an expression of sincere sympathy (that the caller is in a corrupt cult) and a recommendation that they watch the ARC proceedings on the (recently approved) internet.