It oscillates from decade to decade.

The latest impression is driven by conservatives' messaging that "big tech" is censoring them, coupled with their belief that tech mores used to calibrate that censorship are coastal (and therefore more liberal).

Ergo, free speech is their right to say conservative things.

In the 60s and 80s and 00s, it was liberal. Give it another few years to swing back.

> conservatives' current messaging that "big tech" is censoring them, coupled with their belief that the tech mores used to calibrate that censorship are coastal, and therefore more liberal.

It's not a "messaging", it's an observable fact. Look at political leanings and donations for Twitter or Facebook workers. Over 80% goes to the left. And that's before we consider that the power is not distributed equally there and if you look at the people in power it's more like 100% to the left.

> Ergo, free speech is conservatives' right to say conservative things.

That's a completely wrong conclusion. Free speech is everybody's right to say their things, but conservative's rights are infringed much more frequently, so they complain more.

> Free speech rallies have been customarily labeled by the national media (and not only) as white supremacist,

You have that backwards.

White supremacist rallies have labeled themselves as "free speech" rallies in an attempt to normalize their cause.

However, exercising one's free speech rights by rallying for a cause does not automatically make that cause synonymous with supporting "free speech".

True, but before about 10 years ago, the reaction to that was mostly "well, those people are wrong in everything, but they right in this - this is free speech, and we value it, even if we hate those people". Now the reaction is "well, everybody knows "free speech" is a code word for "Nazi" so no wonder...".