Illegal fishing by Chinese fleets is now commonplace in Africa, in Argentina, etc [0], so given how much they've expanded operations over the years it's only a matter of time before you see them there too, if it hasn't happened already.
I was going to write that a boat could get from the ocean into Lake Superior without ever entering the United States (by hugging the Canadian side of all lakes and rivers), but it appears that there is a dam on the St Lawrence River near Cornwall Ontario that forces you to take a short <10 mile detour through a river/canal in New York.
[0] https://www.nytimes.com/interactive/2022/09/26/world/asia/ch...