It's no secret that Lemmy is shaping up to be a viable alternative to Reddit. The issue it faces however is that it's still relatively niche and not many people know about it. I propose that we change this. By contacting the mods of large subreddits and asking them to make and promote relevant Lemmy communities we could substantially increase the amount of people who discover the fediverse. What's more, I don't think this is would be a hard sell considering many mods are already pissed off with Reddit due to their API changes. I believe that this is the time to act, so this is a call to arms, to help grow the fediverse into the future of social media!
I think you're grossly overestimating the ability of FOSS to reach "regular" people. 99.9% of Redditors haven't even heard of Lemmy. There are assuredly very many people using Reddit who would be very happy to switch to something better.
You're not wrong with any of your points, I'm just saying there's no reason to discourage a "get the word out" campaign. People can make their own choices, but only after they know what the options are.