I cannot express adequately how different blades are from each other. Some are smoother than others, some are sharper and some improve after a few uses. Some last longer.
I have fairly fine whiskers, so I don't need a crazy sharp blade like Feather. My skin is also a bit sensitive, so a smooth blade is best.
For me Big Ben, blades made by Lord in Egypt are really good. One of the versions of Shark, also made by Lord are pretty good too.
I find Wilkenson Sword blades to be horribly scratchy, and the name for some of the Gillette blades. Voskhod aren't bad, except they are Russian.
You don't realize how different they are until you try.
Or will there? Certainly, serious issues for US trade, but the rest of us can trade with each other just fine. We're already seeing that start to happen.