It's a daunting battle to fight, and it's disheartening to see that even when we try to discuss these issues, many people are quick to dismiss our concerns.

You said it all.

Whether we like Richard Stallman or not, we cannot deny that it started (in part) with the "I don't care" and the denigration of free software.

Education systems around the world have failed to promote free software as an IT basis and vigilance against proprietary software lobbies.

My opinion is that after being conditioned by their environment most people have already given up on their privacy, so mass surveillance does not bother them that much...

I think it's both horrible and inevitable.

Snowden's leaks are a big reason why I got into politics and FOSS and a big reason why I'm a socialist today.

smartphones were basically the nail in the coffin. Everything else it gravy.

If I try to do the threat modeling, I guess I'm seeing three levels:

1. Intelligence agencies. They probably have access to all possible data about you. Don't make them your enemy. Hopefully they never turn evil in your country.
2. Large technology companies. They make the infrastructure like phone operating systems, stuff that you can't get around on the modern internet like Cloudflare, etc. They can be affected a little bit with legislation like the GDPR but only to a matter of degrees. But at least they have reasonably good security so you don't fully lose control of your data. The worst thing they will do to you is to try to convince you to buy stuff, which isn't all that bad.
3. Smaller or non -tech companies that just are not competent enough to keep your data secure. They will use dependencies that spy on you, like Google Analytics or android app creation frameworks that inject location tracking. An online pharmacy that is using Facebook scripts and thus shares all your medical purchases with Facebook or elsewhere. A lot of this would be illegal but it is hard to find out and enforce the law about, and it's like a whack a mole game. It's hard to know where your data goes and it is probably being sold to whoever wants to pay. For example, local police buying location data from data brokers (worth double checking but I think this actually happens). Since there is no limit to who can access the data, this is more worrying. But for these things, you kind of have the big tech companies on your side. Browsers and phones tend to have built in tracker blocking these days. And you yourself can choose to be careful about what software you run from this category.

My point is that we should be clear about why we are concerned about the future. Who is the threat and how could they use your data against you? Breaking it down and pointing to a clear harm will help people around you understand why you are concerned.

Does the fact all cameras in my home have electrical tape or some other physical barrier on top of them answer your question?

It scares me how much power it gives the ruling class

Not a fan.

My level of worry hasn't lowered in years...

But honestly? Low on the totem pole. Even with Trumpy governments.

Things like engagement optimized social media warping people's minds for profit, the internet outside of apps dying before our eyes, Sam Altman/OpenAI trying to squelch open source generative models so we're dependent on their Earth burning plans, blatant, open collusion with the govt, everything turning into echo chambers... There are just too many disasters for me to even worry about the government spying on me.

If I lived in China or Russia, the story would be different. I know, I know. But even now, I'm confident I can given the U.S. president the middle finger in my country, but I'd really be more scared for my life in more authoritarian strongman regions.

Dangerous, as a Communist living in America.

Don't like it, can't change a lot of it.

Some stuff I can replace with open source software, but a lot of stuff will always be proprietary and opaque. I kinda just have to deal with that.

Use FOSS on non-intel hardware and use tor. Your physical life is just gonna be kind of tracked because if you live in a walkable city, you're on camera the whole time you're out and modern cars phone home EVERYTHING if you don't live in a walkable city. I guess you can buy a 1997 Honda Accord to get around that but on an infinite timeframe the cost of maintaining a pre-panopticon vehicle will only go up...