I didn't realize that Duracell batteries and sheetrock screws were available to Faraday.
Seriously, though, what is your evidence against black holes?
For starters, if there actually was a black hole at the center of our galaxy, you'd see material streaming into it from all directions, and not spinning around the core of the galaxy as the images actually show.
Things like black holes and dark matter are requirements of a paradigm which posits that gravity, the weakest force in nature, controls the cosmos at a macro level.
The basic problem is the distances and sizes involved. Our own sun and Alpha Centauri for instance comprise a system roughly comparable to two dust motes four miles apart. That's typical for our galaxy, and gravity simply cannot hold two dust motes together from four miles distance.Even the laughable claim that "dark matter(TM)" comprises 95% of the universe doesn't help the picture; that amounts to a claim that gravity can hold two dust motes together from one tenth of a mile apart, and that doesn't happen in real life either.