Bill Foster sounds like he has no idea what he is talking about, despite being head of the House blockchain caucus. Just look at some of the nonsense he has come out with:
Foster suggested new laws should require a different form of pseudo-anonymity, wherein a court that is, a third party could learn the real-world identity of a cryptocurrency user through a very heavily guarded key.
Right. Let's just set up a global centralized database and not let anyone create a new address without first completing KYC.

We'll obviously have to erase the memories of everyone who understands elliptic curve multiplication and can create a private key and associated address from nothing.
For most people if theyre going to have a big part of their net worth tied up in crypto assets, theyre going to want to have that security blanket of a trusted third party that can solve the problem.
What absolute nonsense. That is the exact opposite of the founding principle of bitcoin. The entire reason bitcoin was created is to not trust third parties.
They are really hurting bitcoin because they are indicating that bitcoin is not as good as cash as a monetary tool.
Bitcoin is not as good as cash if your goal is to remain anonymous and commit crimes. Cash has always been the preferred option of criminals and money laundering.