Michael Goodwin writes at the New York Post about threats to a fundamental American freedom.

It has been said that “everything is about sex, except sex, which is about power.”

An intriguing notion, but incomplete. Speech, especially the fight to control the speech of others, is also about power.

How else to describe Facebook’s ban on users sharing the claim the COVID-19 virus came from a Chinese lab? The sudden lifting of the ban, following a White House plan to investigate the pandemic’s cause, only underscores the social media giant’s desire to restrict ­users’ speech.

Now you can’t, now you can. ­Either way, it’s speech control.

If just Facebook and others in Big Tech lusted for such power, it would be bad enough. But free speech is under attack everywhere over the simple right to express ideas that break with the party line.

It’s no coincidence that the party line happens to be mostly identical to the Democratic Party line. Most troubling, law enforcement and much of the media have joined Dems in trying to squelch dissent.

The latest example came in a Friday New York Times article on a second FBI investigation involving Rudy Giuliani. The front-page article illustrates an appalling ­effort to declare certain ideas so unacceptable that voicing them could be criminal.

The Times says the probe is focused on Giuliani’s Ukrainian associates who are under “suspicion of meddling” in the 2020 election.

Despite their differences, Americans are in near-universal agreement that foreign meddling in our elections is bad. But it’s only after the Times touches that patriotic G spot that it spells out how Ukrainians might have meddled.

You guessed it — they said bad things about Joe Biden. Or as the Times puts it, the Ukrainians are suspected of spreading “misleading claims” about him and “unsubstantiated claims” that aimed to “undermine” his presidential campaign.