Did you actually read what you quoted? Seems like either you didn't or you want to define "social welfare" in your own special way. It doesn't mean charity and it doesn't mean "agrees with your political views."
See, for example a social welfare organization: Organizing for Action, aka Organizing for America, aka. Barack Obama 2012 re-election campaign, aka Barack Obama 2008 election campaign. Same organization restructured repeatedly and finally into a 501(c)(4) tax exempt entity.
Additionally, you don't just get to claim to be a 501(c)(4) and start acting under that umbrella, you have to apply and get granted that designation. So your whole paragraph about organizations abusing this status is BS, not to mention the falsity when you suggest both "tea party and progressive" groups were equally targeted. The delays and intrusions were almost exclusively against conservative groups.
It's clear though that you're not actually interested in the truth, merely trying to obscure malfeasance and leverage the power of the state to manipulate the results of elections. I'll just finish by pointing out you are a partisan liar, your posts have the barest relation to reality, the IRS targeted conservative groups, it likely affected the 2012 election, and here is Wikipedia's summary of the scandal.