I didn't read too much into it, but apparently 11m people is the critical mass needed for a national protest that can't be ignored. So, it's more around 2-3%. Maybe more is needed, but at that point you will get a network effect of others joining in for the sake of joining in.

We're spread, but IIRC the 10 most populous metro contains half the population. It'd more be a matter in making sure each major hub has around 500k-1m people gathered. As a matter of scale, the Montgomery march was 256k.

>Most people are too apathetic to be bothered and by the time some final straw makes them care it'll likely be too late.

I suppose we'll see soon enough at this current rate.