That doesn't make you a racist, but it does demonstrate that you have racist tendencies.
There is more going on here than this article addresses and way more going on than you address, but the difference is that you make a lot of broad assumptions based on prejudice and the article doesn't. The article just looks at numbers and shows that something statistically significant is going on. You cite (or rather, you conspicuously don't cite, but ask us have faith in your authority) egregious examples, but we all know that anecdotal evidence is not reliable. I could also offer egregious examples of white people being treated more leniently than minorities, but without real statistical analysis, we don't know if either of these examples represents a significant trend.
The article is convincing in that they thoroughly document their process and statistics. The article does not explain why the numbers came out that way, though it does suggest further avenues for research that could help determine that. You dismiss the article not because of any methodological or mathematical flaws, but because it doesn't fit your worldview. The article is based on statistical analysis and your worldview is, by definition, biased and incomplete.
You don't appear to be actively or maliciously racist, but merely blind to your own prejudice.