It's not really about politics. It was a stupid idea to create centralized stock exchanges for a decentralized currency. There is a reason Bitcoin is decentralized, but somehow people thought stocks would be different? Did you forget that this could happen? And no, the US government isn't the only government which will crack down.

The smart property function can be built into the blockchain rendering all of this moot.
Contact politicians for what? So they can pass a law which was already passed? The SEC already has the crowdfunding law on the books and is taking their time to put it into effect.

So what law do you want people to vote for? The divide and conquer nationalism only helps the state.