From the governmental side, there are many on the frontline. Whoever feels threatened by Bitcoin's existence is going to try fighting against it. I don't think there's any specific governmental body that works against cryptos. From the Bitcoin side, devs are the frontline, followed by us.
The thing is, it seems like in Bitcoin's case, lines of code have more power than a government does. This seems insane but it's how it is.
Personally, the people that are afraid of bitcoin and is waging a war against it are the people that are afraid that they will lose control of the population, we know that bitcoin is a tool to financial freedom that has been shackling people ever since the first banks were created and this freedom meant that people will not rely on banks and eventually lead to their ruin so to prevent that from happening, they have to do whatever it takes to defame bitcoin but most of the time those schemes backfires.