I don’t think it is relatively difficult to make “Ethical” AI.

Simply refer to the sources you used and make everything, from the data used, the models and the weights, of public domain.

It baffles me as to why they don’t, wouldn’t it just be much simpler?

Except tox’s graphical clients aren’t maintained anymore

Now this was quite the read, awesome article

Put simply, a bot that interfaces with external services and replicates messages to/from a Matrix chat. The software is at matrix.org

Which bridge did you use, if I may ask?

Maybe try a Matrix bridge?