You are being extremely rude and entitled throughout this entire thread. No one is under any obligation to bring their software to any given platform.
I don't think anyone disagrees that the world would be better if software were freely available on everyone's platform of choice. But you're coming up against fundamental resource limits -- there are only so many people working on a given project and there is only so much time in a day. Resource constraints are why you yourself are not doing the work and resource constraints are why other people are not doing the work.
You answered earlier that it'd be less work for everyone involved if the original authors simply ported the software, and perhaps so, but I'm not convinced of this. I would have a difficult time porting my software to MacOS for example because I've never used the platform. And even if so, I have a limited amount of time on earth. In terms of maximizing utility of my time, I think there is a strong argument that spending my time improving the software quality instead of improving its reach will result more happiness overall. Partly because you cover more than 99% of people by targeting mainstream platforms. FreeBSD for example cannot account for anywhere near 1% marketshare.
In the case of Serenity, it's not yet even in a usable state as a replacement browser. Let them focus on getting it usable. It's the type of thing that will eventually appear on BSD when it gets good enough to be used.
None of this is going to change by you leaving rude comments to the people doing open source work. I think the net result of it, if anything, is reduced interest in porting.
You have to understand and accept that you have made an ideological choice on what platform you use. You have to understand that your platform has an absolutely minimal number of users. The inevitable consequence of this is less software available for your platform. It isn't a grand conspiracy, it isn't spite, it isn't me acting like the BSD's do not deserve ports -- it's just the fundamental nature of reality and resource constraints.
Even folks on Linux are sacrificing on software and convenience and Linux has a market share which is likely multiple orders of magnitude larger than FreeBSD.
I'm sorry you're feeling burned out, but posting mean and entitled comments online is not going to help. It's only going to spread the burnout like a mind virus, causing others to feel burned out themselves.