It is just a discussion Dave.
Most people like to exchange views on important subjects.

Opponents, you have tried shouting me down and discrediting me.
Now try debating.
Notice how I put my case objectively, and supported it with quotes from an IRA commander, from NICRA, with voting statistics and, when challenged that I had never addressed an issue, with old posts to show I had.

It is as if you are not used to your beliefs being challenged.
Perhaps, where you come from, that was not a healthy thing to do.

Try something like this:
Keith, I think you are wrong because....
or: Keith, a major flaw in your argument is...
or: I believe that IRA was a force for good because...