If aliens are ever discovered to be real, I will watch in distress as the government proceeds to explode the fuck out of them (let's be real, the government will most likely either murder them or exploit them for profit). I save up massive amounts of money. Then I create several large, secret shelters that can withstand a direct hit from even the most powerful nukes. Equipped with comfortable accommodations for both humans and aliens. I then rescue the aliens by running an underground type operation. I bring them to the bunkers. I arm them with guns and ammo myself and others have purchased.
Once we gain enough resources and numbers, we head out into battle. It will be time for what historians will call "The Great American Alien War." It will be a massive revolution.
Aliens will not be blown up by the government. Not on my watch.