I think that may be wishful thinking. This is likely to devastate the market, so that gaming stuff may well not exist to be picked up.
Devastate does not mean destroy. Also keep in mind that these tariff shenanigans are US only, the rest of the world is still perfectly willing to trade with each other. And while the US might be a large part of the
English pnp RPG industry, it's certainly not all of it. Free League for example is Swedisch, they might eventually miss physical book sales to the US if/when those will eventually also be tariffed. But there are still large swaths of the world that speak English, UK, Ireland, large parts of Canada, quite a few countries are too small for localization, so they also use the English books as well, and even some folks from Germany and France prefer the English version to their native language version.
Pnp RPG publishers still have access to world wide pdf and VTT sales (even STLs). And things like dice, maps, tiles, and miniatures are language neutral (most of the time), so they can be sold everywhere but the US. Just Europe alone already has twice the population of the US, the reason why it's not a pnp/RPG paradise for publishers is due to us having 24 recognized languages (250+ languages spoken).
Will it hurt? Yes! Will it destroy all game products? Hello no!