If the OHL demographics were to mirror NHL demographics because all the Americans in the region want to play in the OHL instead of the USNTDP or USHL, about 200 Canadian kids are getting cut from the OHL, and they'll need a place to play. It's likely the USHL exists in some capacity regardless of who slots where.
Using the NHL ratio of Canadians to Americans for the ~485 non-import OHL roster spots would result in almost exactly 200 Americans. There are already about 35 Americans on OHL rosters so the displacement of Canadians would be about 165 using that ratio. And realistically, a lot of Americans who are likely to land at or near the bottom of OHL rosters would stay where they are so the displacement would almost certainly be considerably less.
CHLers being eligible for NCAA is going to result in some significant changes but there's still going to be both demand and supply for quality junior hockey in the USA, everybody knows that.
thats my argument do you really think local CHL teams with local fan base will have 6-8 USA players on their team taking spots from Canada kids . I dont see it - they want to grab top 40-60 USA players and thats it .
A few additional Americans on the roster wouldn't turn off Canadian CHL fans. Canadians didn't lose interest in the NHL as the percentage of Canadian players dropped from 90% five decades ago to 40% now. BCHL has plenty of American players. Americans support CHL teams with rosters that are vast majority Canadian.
There are easily more than 40-60 Americans playing in other junior leagues that CHL teams would happily take if they were simply free to do so. There are currently 60 CHL teams so even an additional 180 Americans would only be an average of three more per team, and right now the vast majority of CHL teams have somewhere from zero to three Americans on their rosters.