You make some interesting points about Toronto and Canada.
I see from social media that some people think that the AoM should relocate either its conference and/or its headquarters to Canada to hide the fact it is American. Speaking as a historian of international business, I don’t know if that strategy would work. During and between the two world wars, some German firms incorporated in Switzerland and other neutral countries in an attempt to present themselves as non-German firms. This strategy worked for some but not all of these organizations. In some cases, Western government officials saw through the ruse of incorporating in Zurich or Macau, as did some customers in those nations. (Consumers in that era were typically low information people). I suspect that the many Middle Eastern and Chinese academics who currently pay to attend the AoM won’t be fooled if the mailing address is suddenly changed from Briarcliff Manor to Toronto. They will realise that the AoM remains an essentially US organization, even if they membership fees are now billed in Canadian dollars and the website has a Canadian IP address. Whether that knowledge would change their willingness to pay to attend the AoM is something I don’t know. I suppose it depends on the extent to which they feel that the attitudes of the current US administration towards Muslims, Mexicans, China, etc reflect those of the US population.
The following pieces of business-historical scholarship may or may not provide useful lessons for the AoM leadership at this time.
Casson, M., & da Silva Lopes, T. (2013). Foreign direct investment in high-risk environments: an historical perspective. Business History, 55(3), 375-404.
Jones, G., & Lubinski, C. (2012). Managing Political Risk in Global Business: Beiersdorf 1914–1990. Enterprise and Society, 13(01), 85-119.
Smith, A. (2016). A LBV perspective on political risk management in a multinational bank during the First World War. Multinational Business Review, 24(1), 25-46.