NAFTA has a provision for no-visa entry as an "internal transfer". Having a Canadian office is not unheard-of to invoke this position, by stationing an employee they really want at a US office in a Canadian office and then transferring.

While politicians may be motivated, there's no indication they would be motivated more by THIS business than by ANY OTHER business, all of which have the same concerns, have had the same concerns for years, and immigration has generally been avoided.

The L1 already works like this, and it isn't just limited to Canada. So say you work for Microsoft China for a few years, you can then get an L1 to work in the USA, which is much easier than a H1 (no cap!).

You need a Canadian passport to use nafta and that takes around 5 years at least

What US companies do in Canada is often have an office where people can work on a temp visa while waiting for their status in the US

With far-right racist and anti-immigrant sentiment rising and taking power in the US, as a brown immigrant even if you can get a visa wouldn't you be concerned about moving your life here?

I doubt it. Congress has failed at immigration reform for years and the current administration wants even less immigration than currently occurring.

The current administration says they want less immigration occurring, but also seems confusingly willing to cut deals that completely flying in the face of the President's public statements. There's presumably room for a deal if partisanship doesn't get in the way, because it seems as if there's no will to revoke DACA for real on anybody's (even Trump's) part.

But, it's an election year, so...