This bill isn't a problem for Bitcoin per se. Rather, it's a problem for all the software surrounding Bitcoin: notably Linux and all the software that makes up Linux distributions. The Linux Foundation and Software in the Public Interest are two US non-profit corporations, both of which could be coerced to change their code for national security reasons.

Free software has thrived in an obscure legal niche, which the US and EU haven't seen as a national security threat, so far.