Someone said above that self-professed conservatives outnumber self-professed liberals two to one, or some such. However, going by issue polls, liberals outnumber self-professed liberals by more than two to one. That is, many people who don't call themselves liberals really are.
This country isn't center-right. On most issues, it's center left:
For First Time, Majority of Americans Favor Legal Gay Marriage
Polls: More support for unions in Wisconsin labor battle CNN Political Ticker - CNN.com Blogs
Polls show most Americans support raising taxes on wealthy - Political Hotsheet - CBS News
In U.S., Majority Still Wants Less Corporate Influence
The views of those involved in these left-wing protests (the Wisconsin uprising, Occupy Wall Street, and now this) are supported by a majority of the people, according to polls, while those supporting the positions of the Tea Party are no more than 25% of the people.
The "October Offensive" isn't going to "rival" the Tea Party. It's going to dwarf it, swamp it, overwhelm it. This is the real thing, and you guys aren't going to be laughing much longer.