Not to mention that "black hole" and "dark matter" are sort of place holder names that end up sticking. These phenomena are also attempts to fix the old model

Not to mention that "black hole" and "dark matter" are sort of place holder names that end up sticking. These phenomena are also attempts to fix the old model because they didn't produce the correct predictions. Physicists are doing exactly what the OP would like them to do. Paradigm shifts are also very hard. Your current models predict a lot of things very very accurately. Just look at all the stuff we've built. A new model has a lot to live up to if we want to use it.