Runway is not the issue, imho the issue is skills and having a idea that can be monetized. Hosting is pretty cheap, we have insanely good tools to automate tedious parts of the process and the time investment isn't huge as well.
"Making money is easy, just go out there and make money" is effectively what you're saying. It takes time to find and execute these ideas. Yes the tech can be cheap, maybe even building it can be cheap, but the time to grow your customer & client base from scratch can be highly varied. If it were really this easy, you'd have every person on IndieHackers having ditched their jobs already because their ideas have taken…
I think you're being pretty dismissive here. That person is talking about someone who currently isn't working and is struggling to find work. "idle bandwidth". Nobody is saying it's simple or easy, but if you're in this field you have the skills to at least try. I've been laid off for 9 months so I understand the toll it takes mentally, but having a pessimistic attitude won't help you in the short or long term.