The massive number of privately owned guns in the US hasn't thwarted or stopped any terrorist attack, as far as I know.
That has nothing to do with the fact that privately owned guns in the US have neither thwarted or stopped any terrorist attack.
I support police officers having guns.
If someone's "point" was "defeated" here, quote it and show it.
No one owning guns, including police, has thwarted or stopped any terrorist attack, so the whole point is logical fallacy. Thus defeated, when you realize privately owned guns have arguably nothing to do with terrorist attacks (being prevented).
May as well say, 'the massive number of privately owned guns in the US hasn't thwarted or stopped any person from getting cancer, as far as I know.'