This take depends on the munificence of the local retailers deciding all on their own (because there's no external pressure apart from other retailers in the same position) to lower the price of their goods (and therefore reduce their profit) once the tariffs have forced the foreign goods off the market.
I don't believe it for a second.
Here's something that has happened before though. During the American War of Treasonous Aggression, the southern states decided to impose tariffs on the export of cotton to the UK. That caused massive hardship in the UK in the short term as it made the goods that the cotton was a raw material for impossible to sell. UK jobs were lost, UK workers starved etc.
So the local UK manufacturing companies found markets to supply them elsewhere in the world. They set up the supply lines, they reached agreements, and life went on. UK jobs were gained again, UK workers stopped starving. Life was good.
When the American War of Treasonous Aggression was over, the southern states wanted to drop their tariffs and start supplying the UK again. It didn't happen - there was no need to return to an unreliable partner when everything was set up just fine and dandy as it was, and the US cotton was essentially unsellable. US jobs were lost, US workers starved etc. The cotton industry never recovered from that.
Tariffs are a "fuck you, make me" slap in the face. Do it to people you don't like, but if you do it to people who are supposed to be "allies" (obviously not allies in the above case, but the consequences here were just as real), the consequences can be ... quite concerning for the tariffers.