One of the major reasons that the MAL resorts to claims of “racism” and “McCarthyism” is because they have other arguments that will stand up when explicitly stated. This is of a piece with the standard vagueness and insinuating style of MAList rhetoric, derived from the basic problem that MALists have to live a lie. It’s why Tea Party activists strongly recommended bringing cameras, while MALists attack people with cameras.
There’s also the fact that such attacks have become simply reflex, the same way the beliefs and ideology of the previous generations of MALists have degenerated in to slogan clusters. It’s just what they do, it’s always worked before.
But I think this article touches on something that might be just as important, which is the most MALists have a very difficult time understanding other frames of reference. To them, everyone is either part of the cultured elite (like them) or irrational barbarians. Since the publicly proclaimed goals and beliefs of the Tea Party don’t fit in to the MAList reference frame, they must be irrational, an artifact of uneducated bitter clinging. Definitely worth reading.