Re: Poor science
Scientific theory says that you can never prove anything to be true. The most that you can do is to make a prediction based on the observed evidence and test that. If the prediction proves true the hypothesis stands until disproved ( "falsified") or until the weight of evidence is such that no alternative is feasible.
So evolution can be reasonably held "true": There is no rational alternative explanation of observed phenomena.
Black holes likewise.
Dark matter and dark energy are the best possible explanations for the existence of a universe that remains stable while expanding, with the current understanding of visible mass, But a better explanation may arise out of new observations.
Biting the hand that feeds IT
