I confess I am quite bewildered at your obdurance. Let's see if you can follow the 'bouncing ball' on this one.
1. For quite some time, we have known that the chromosome count for chimpanzees (48) differs from that of humans (46). In fact, I can remember my lecturers discussing the difference when I studied some biology, 60+ years ago.
2. Evolutionary theory posits that, amongst other claims, humans and chimpanzees share a common ancestor.
3. The difference in chromosome count between two closely related species appears to present a major problem for that claim. How could such a major genetic shift occur in such a relatively short period of genetic history?
4. The theory, then, would predict that there must have been some mechanism responsible for the 'reduction' in the number of human chromosomes. Several explanations would be supported by the theory, including the fusing of chromosomes during human evolution.
5. This prediction is seen to hold at chromosome 2, which shows clear evidence of this fusion having taken place, thanks to the improvements in our analytical technology over the last decade or so.
I really don't know how it could be made any clearer to you? You appear to be desperately clinging to some very technical, semantic objection over the use of 'predict'. If that's the case, well cling away! It strikes me that those who are reduced to arguing out the minutiae of an issue simply have no issue to argue!
The larger picture is clear. Evolutionary theory, in keeping with most robust scientific theories, has a predictive quality to its usefulness. From Tiktaalik, through to chromosome 2, to the use of the theory in predicting the outcome of disease research, to the 'out of Africa' theory, to the prediction of insect wings from gills, its implications are quite obvious.