You have to put it from a positive. I don’t think it’s that hard. Here’s an example.
Catholic thread on Our Lady of Fatima.
Non-Catholic - You Worship Mary (toss)
Non-Catholic - You are an idol worshiper (toss)
Non-Catholic - You put Mary right up there with Jesus (toss)
Non-Catholic - Can you please show me Biblically where Mary is the Mother of God? (non-toss)
If it’s too confusing, just don’t post there. It’s not hard
I don’t plan to post on them, however I do care about the welfare of other Protestant posters, and that they get treated fairly.