He owned the biggest factory in Chicago. I don't think the financial pressure of "skilled immigrants want to work for me because they think I'm Norwegian like them, but I'm actually Danish" is anything but 1800's tech bro-dom.

That said, lots of people did and do Americanized their names to survive

Biden could have kneecapped the entire right wing grift economy by actually empowering the FDA to do what they are supposed to be doing

A lot of the "Ellis Island" involuntary name changes show up on the ship's manifest, so it's probably some questionably-literate ticket seller who is to blame.
Having been a questionably-literate ticket seller in a room full of questionably-literate ticket sellers, this seems likely.

"3 vowels in a row is too fucking many. Imma drop one." - my great-grandfather except he said it in colloquial late 1800's Bayrisch.

"After A/B testing, -son is better for business than -sen" - my mom's great-grandfather except he said it in late 1800's business English

And people changed their name voluntarily (and probably blamed others if family members got upset).

Also, much of European immigration in that era was from countries and cultures where spelling was in the process of standardizing and/or last names rather than patronymics or farm names were becoming a thing.
You can't be named Hans (of) GoodFarm if you don't live at GoodFarm anymore!

I firmly believe in the Netherlands solution in residential areas: every crossing is a speed bump. The sidewalk does not come down to meet the road; the road goes up and over the sidewalk. If you blow out your tires doing 40 mph over them, well, slow the fuck down.