The post I replied to stated, "I can guarantee that this move will push up inflation. You are just naive to think otherwise"
Can you tell me where in the BoE Decision Maker Panel survey from January, it says that the NI hike specifically will guarantee higher inflation? As far as I can see, just over 56% of the panel, say it could. 62% also say that it will result in lower profits. 53% in lower employment.
So, only just over half the panel "expect businesses to respond ... with higher prices ... due to NI", and that's a panel made up of businesses, so is much more likely to be pessimistic about something that affects their own profitability. It's essentially a crowdsourced "guess", and even then nearly half the crowd disagree. Seems to me to suggest, it's complicated, with multiple potential outcomes, and no-one can guarantee anything.
Even your own post doesn't say guarantee, and I'm pretty sure you wouldn't make a statement as simplistic as the one I replied to (which is why I usually quite enjoy reading your posts), so I'm surprised you're defending it.