we all live on this planet together and the only way to make it the best it can be is to try and understand each other

Understanding and agreement are not synonyms. You can fully understand the views someone holds, and why they hold them, but still come to a different conclusion yourself.

The way you've described the situation treats the idea of progress as some unidirectional, always good force of nature rather than a collective of actions made by people. I don't agree with this. Progress as a concept is neutral, and any given progress can be good or bad, on a scale. As such, people shouldn't just roll over and accept "progress is progress" as an excuse when something they don't support is being normalized.

you should try and understand why Nexus is taking that stance

Once again, understanding and agreement aren't the same. I fully understand why nexus does what it does, but I that doesn't entail support for them doing it. At its core, I think it's utterly fucking stupid for a website built around modding, something fundamentally about individuals playing games how they want, to make a bunch of rules about how people should play games if they want to be on the site.