A big problem with removing Obama from office is that too many people are too busy trying to form 501(c)(4) non-profits that deal with issues, not individual politicians. 501(c)(4)’s can not by law be primarily about politics or support/oppose political candidates.
In other words you have to give up a good deal of your free speech rights, when you become a non-profit. So, a 501(c)(4) can not lead an impeachment campaign, or the organizers are at least afraid to try that lest they lose their non-profit status. However, they can get unlimited donations from anonymous donors, maybe make a job out of it and build up their retirement plans.
The way to get help from the Tea Party or other such organizations is to approach the individual members and not the organizers, who are too worried about their non-profit status to help.