Ordinary Canadians only care about Timbits, lottery tickets and big screen tvs.*
If they don't already know about the HRCs, that's because they don't want to know or care and never will, so any developments in the campaign (such as American support) won't matter anyway.
Like Meech Lake and so forth, the campaign for and against the HRCs will be conducted by about 1% of the population while the rest are swatting black flies at the cottage or running the office hockey pool.