Not sure why anyone would make a lot of noise about this agreement as if it is a major win for anybody. It doesn't appear to be.
From what I can see the US gets 3% more access to Dairy, but they were never shipping their maximum allowed into Canada under the former agreement so this seems like a non-event. My understanding is the US was exporting $500 MM in dairy products into Canada under NAFTA anyways. The supply management thing that Trump made so much noise about (and pretty much nobody in Canada outside of Quebec wants) has changed a bit with the US now being able to increase exports of eggs and poultry into Canada but again one wonders how impactful this will be. Most Canadians will buy fresh eggs, dairy and poultry meaning from local producers rather than that which is shipped in some distance. Probably more impact to the Provinces that border on US farm country.
The term on protection for drugs went up 2 years not the 4 years the US wanted. This will cost Canadians a bit more as there was a steep discount with generic drugs
Copyright terms in Canada now match those in the US and Europe (70 years after death of inventor) but from a tax income standpoint it is a wash given those estates holding copyrights will make more money, offset by those who have to license those rights. This simply brings Canada up to the levels elsewhere.
The cultural provisions in NAFTA which the Canadian government wanted to maintain in order to protect Canadian digital content remain. I think most Canadians would have been happy to see that disappear given most think the CBC sucks and are tired of yet another version of Anne of Green Gables making it onto the television screen. I suppose there are a few good shows on CBC but they are overwhelmed by complete dreck IMO.
There is no change to TN trade visas (for professionals wanting to work across borders).
There is no change to the Buy American rules that existed under NAFTA which applied to cross-border procurement.
Chapter 19 rules on trade disputes remain in place which should keep the US from dumping dairy products
There is a side letter that protects Canda and Mexico from any auto tarrifs in that it sets a maximum limit that is far above current Canadian exports of autos or parts into the US,
All in all I think this is a non-event. I'm sure it won't keep Trump from beating his chest and claiming victory though!
I saw a funny comment....when you say USMCA with a sing song voice it sounds almost like YMCA. Maybe Trump will make his staff dress up like the village people now.