Imagine that if Bitcoin forum members (consensus) can form a community organization, will they be able to run for the president of the United States?
Of what use would this be? Bitcoin forum is not a cult which wants to control the world or the US, members just want the freedom to be able to control their finances without interference from a third party. Being a member of the bitcoin community does not give you any political prowess.
the only thing that regulations can work on are centralised projects and crypto exchanges, or am I wrong ?
Pretty correct, if your coins are in a non custodian address the government has no influence over it. However, a lot of people do not want to o go through the
stress of being their own bank and would rather just allow someone else to do that for them, this is where exchanges come in and the key route for the government to control one's assets.
Government agencies can regulate exchanges and by extension regulate the assets they hold.