I don't think there's any political interest in looking at them right now. It's largely just a bunch of nerds playing with pretend money. It hasn't really hurt anybody outside of it yet.
On one hand, the crypto-economy is still too small to represent the same kind of systemic risk that took down the banking system in 2007/8, so there's less urgency to do anything about it.
Additionally, both governments and regulators, in the US at least, tend to prefer to let new technologies incubate and evolve for a time before regulating it more strictly.
On the other hand, it's too small to have the armies of lawyers defending it that the banking system does, so it's an easier target for regulators looking for wins than Wall Street is.
The SEC, CFTC, Treasury are all looking at it in the US and doing some triage regulation, only going after the most blatant and worst problems atm. I'm sure they'll step it up if/when the crypto-economy continues to grow.
Let’s say the government outlaws Uniswap tomorrow and throws the entire team in Supermax prison for life. The protocol will just keep running forever. There’s nothing that can be done unless the government can shut down every Ethereum node in the world. Even “outlawing” Ethereum in the US wouldn’t work, unless they put in a Chinese style Internet firewall.