I agree with you that Leftists are non logical when it comes to politics and won’t change. However, there are a lot of other people who think they don’t pay attention to politics, they too are on social network sites, and they are the ones to try to get to.
I see this as a way to get through to these low info, non political people. They will see first hand how a conservative responds and thinks, and what a lunatic the leftist is.
One example: I like to go to this decorating forum. Since it is a decorating forum, politics is pretty much off limits, but you could still tell by their reaction to “female” issues what side of the political spectrum they resided. During the R primary, someone started a thread about who should win the GOP ticket. These women were so busy insulting the wives of the candidates running and patting themselves on the back that they could be so open minded and have a nice discussion about the primaries.
I stayed on topic, and was polite, but I wrote that I would be supporting Newt since my gal Sarah wasn’t running.
I KNEW this would send these leftists into a tizzy, and boy it sure did. They were so nasty to me, Sarah, and FOX that the mods pulled the thread. This accomplished something significant. All of these types of sites have a lot of lurkers, and others who just don’t want to be treated badly. When you try to tell low info people of the lefts nastiness, they respond with “both sides do it” I want them to know and see these people for who they are, and maybe to realize they have been lied to for a long time.