Can you please identify any one of your “bunch of people,” link to a place where they said it’s not good to make fun of a woman, and then link to where they made fun of her here?

Because I think you are generalizing in an unserious manner.

What I see is a bunch of people who tell us that sexism is awful, and that it’s not good to make fun of a woman, that demeaning one woman hurts all women everywhere…and here they are making fun of a woman. It’s not a “conspiracy”, but it does seem like their morals are more convenient than consistent.

A legitimate slander lawsuit happens when there is a slander– something defamatory and false that an unwary reader might believe to be true. But where is the slander here? The only thing defamatory is the suggestion that Meghan McCain is a mediocre writer, at most a matter of taste rather than a provable falsehood.

You may hold the traditional common-law belief that the courts, like the dining room at the Ritz, should be open to all comers (who can pay). Free speech activists believe that free speech needs special protection against frivolous lawsuits: lawsuits that cannot prevail under current Supreme Court standards, but which nevertheless are expensive to defend.

Twenty years ago, large newspapers could afford to defend themselves against frivolous libel suits (once the USSC’s NY Times v. Sullivan decision protected them against biased juries). Today, however, when web-based news runs on much smaller profit margins, they don’t make enough profit to pay for defense of legitimate journalism. Strong SLAPP laws are needed to tip the balance back in favor of openness.

You see a liberal conspiracy to humiliate a Republican woman.
Did you check out the Redstate website that posted the parodies making fun of her? Its slant is right-wing Republican, the sort of people who distrust Sen. John McCain as not sufficiently conservative.