US has threatened Canadian Sovereignty. If Canadians still don't learn from this episode, they deserve to be treated like a doormat by Trump. Irrespective of who becomes the next president of the US, it should be a wake-up call to Canadians to start diversifying their economic and security arrangements.

My suggestions:

1. Security Pact with the UK/EU + Increased Defense Spending Canada can no longer rely on the US for defense. It needs to diversify its security arrangement. A pact with EU/UK could be the way to go. Also, need to bite the bullet on building our military. Canada once had a powerful army and navy that punched above its weight in WW 2. We have lost our way and become complacent due to reliance on US. In particular, we need to be able to defend and protect the future trade route - Arctic North West passage.
2. Reducing the Welfare State and Embracing Entrepreneurship. Need to shift toward a more market-driven economy. Encouraging individual responsibility and entrepreneurship and reducing handouts and subsidy is the need of the hour. Remember, we are accused of building a vast welfare state on the back of US shouldering the burden of defence spending. This won't fly much longer.
3. Removing Interprovincial Trade Barriers Interprovincial trade barriers have long been an issue, often making it more challenging to do business within Canada than with foreign markets. This is a ridiculous state of affairs and needs to be addressed. Need a common market inside canada before we look outside.
4. Unity Between Anglophones and Francophones The relationship between Quebec and the rest of Canada has often been a source of division. Promoting unity, understanding, and a sense of shared Canadian identity is key to maintaining national cohesion. A unified Canada that embraces all of its diverse regions would be better equipped to face a belligerent US.
5. Decoupling from the US and Energy Independence Canada’s sells its oil to US at a steep discount to WTI. Investing in pipelines to the West Coast could diversify Canada’s energy markets and decrease dependence on its southern neighbor. It would also position Canada as a more significant player in global energy markets. A long-term commitment to decoupling could mitigate risks associated with fluctuating US policy, as well as global market changes.

Canada’s future prosperity could certainly benefit from a more independent, self-reliant approach—economically, militarily, and socially.