I think you guys are entirely missing the point of a decentralized community and want to make it centralized. You come to lemmy with the expectation that it is something else, and when finding that it has some differences, you want to change it to fit your view. Come with an open mind and see the strong points. Because what you get is much more than what you miss.

Having two (or even more) communities/subs for the same topic is a feature. I understand that you think that having the community split in 2 might not be ideal, but that is the price to be paid for decentralization. And decentralization is the way to go. If one actor stars misbehaving, we easily have alternatives. One community starts being too draconian? Go to the other one. Start a new one. One community goes down due to too much bandwidth? You have the other one. Decentralization is so so good. I suggest watching some videos on the topic. You will grow to love it.

Now, the 2 technology communities: Pick both if you want. Interact with them, in different ways. Don't spam of course. But it will sort itself out. One of the communities will prevail as the bigger one and the other as the smaller. See it as a sort of evolution of communities.

Merging the communities would be wrong. That would defeat the purpose of decentralization! What could be done, is some sort of "tagging" for easier subscribing. If both of these communities were tagged as "technology", than you could subscribe to the tag "technology" and it would subscribe to both subs. Just some UX thing. But they need to remain 2 separate subs!