Impeachment of Obama is NOT a smart political move. The Press would play it up as pure political gamesmanship and probably racism. It wouldn’t go anywhere because the Senate would never vote to remove him and the whole circus might just end up making Obama more popular (Like it did Clinton).
If you won't do the right thing because you are afraid of the press, then you might as well give up.
I think they should after this November, once we regain the senate - If we don't do anything - we are just as complicit, forever worrying about a voting bloc we will never see....and if we are successful - we run against plugs Biden...their convention would be factionalized with Hillary and no suitable candidate comes forward