You've overlooked an important benefit of freedom: only software freedom grants users the ability to either learn what needs to change and change it, or hire someone with the needed skill to do this job for them.
I didn't overlook it, I just think it's mostly illusory. It's like saying that in the age of the Internet, the only thing stopping anyone with access from becoming a self-made millionaire is not spending the time to learn new creative skills, to create something valuable using them, and to learn the sales and marketing skills to then sell it. It's probably true that many people could actually do that and be successful under the right circumstances, but it's glossing over a lot of other details, and those details are why in real life very few people actually succeed that way.
You appear to have a preference for init over systemd
I'm not expressing any view on that particular subject. It was just the first controversial and substantial example that came to mind given where we're discussing this.
Your claim is akin to arguing that freedom of speech is pointless because you don't plan to speak against the powerful.
Not at all. My claim is perhaps more akin to arguing that freedom of speech has little practical value to someone if no-one they are talking to speaks the same language anyway. I'm not saying there's anything wrong with freedom of speech, or that it couldn't be valuable to someone else under different circumstances. I'm just saying it doesn't immediately help the person in the original position, because while they may have the same freedom as others, they have no way to benefit from it without learning a lot more first.
To take the analogy a little further, someone who was in trouble in a foreign country and didn't have the time or resources available to learn the native language themselves might benefit from using a translator. Sure, they have no way to verify that what the translator is saying on their behalf or telling them in return is actually correct, but it's much more effective than the alternatives they actually have available in practice. At some point in life, you have to trust that someone else is doing something properly. It's often difficult to decide when and to what extent you will give that trust, but unless you're planning to live as some sort of entirely self-sufficient hermit, the alternatives aren't very practical.