2:10 "I assumed that, if I couldn't beat the system, there was no point on whatever I was doing": that's the old nirvana fallacy. The rest of the video is about dismantling it for the individual, and boils down to identifying who you're trying to protect yourself against (threat model), compromising, etc.

It's relevant to note that each tiny bit of privacy that you can get against a certain threat helps - specially if it's big tech, as the video maker focuses on. It gives big tech less room to manipulate you, and black hats less info to haunt you after you read that corporate apology saying "We are sorry. We take user safety seriously. Today we had a breach [...]".

And on a social level, every single small action towards privacy that you do:

• makes obtaining personal data slightly more expensive thus slightly less attractive
• supports a tiny bit more alternatives that respect your privacy
• normalises seeking privacy a tiny bit more

and so goes on. Seeking your own privacy helps to build a slightly more private world for you and for the others, even if you don't get the full package.