I think most people don't mind paying for software, they just mind situations like having to rent software forever (subscriptions), or software companies being ran by people who are only focused on increasing revenue at the expense of actual making good/better software.
I think subscriptions are fair if you want updates, which for anything security related you do. The alternative (from decades ago) is to re-buy it every few years.
This isn't about cost. If these projects, like bitwarden, were run at cost the price would be negligible. Instead you see software companies with like 80% margins (or even higher). Not to mention that if the price was reduced to near cost then you'd get more users which would even further decrease the cost.