I remember when the left was pro- privacy and free speech.

free speech absolutists do not exist. The only thing that changes when Overton window shifts is who does the censoring.

25 🇮🇹 | Core Dev at ethOS, a mobile OS with native Ethereum support.

I agree with this. However, in the US, the left used to hold the view: “I do not agree with what you say, but I defend your right to say it.”

It was a tenant of the left that free speech is critical to a free society.

Free speech mustn’t be absolute to be important and worth fighting for.

I’d love to think so. But for example, I don’t know many that would agree with me that the right of neo-nazis to parade must be protected.

That used to be a no-brainer.

I would generally say left still agrees with this but may not feel like it because the minority of people who don’t are much louder

Imo, today there are way less off-limit topics than before. It's just that engagement with media sucks as a side-effect of user retention practices on modern social media platforms.