I did felt uncomfortable knowing that Bitcoin enabled criminals

That's because those who actually understand what bitcoin is, how it works, the technological as well as the financial side, the implications for society on the longer term and maybe even an understanding of the exponential function and network effects, are elite. Most people simply do not have the mental capacity to understand all of that at once. So when someone like the op comes along, who only takes a months long look at things and fails to take into account even the past years price history, there is a reaction.