Mr. Anonymous: Mich. is one of the largest throughfares in the entire city, putting it in the running for one of the busiest streets in the country. There aren't a thousand visitors, a million+ circulation daily newspaper and several TV news and radio stations on State or Clark Streets.
Assuming people don't protest just to scream into the wind, it seems like Mich. is the best street for a 1000 miles in every direction in which to march. "Annoying" people isn't the aim, awareness and solidarity with those who might be emboldened to march with us and write letters and vote next time is what we're going for. If someone is inconvienced while shopping for a new Coach bag for a moment, so be it.