<em />First of all, they can indeed protest. In the USA, we have the right to do so, and if enough people can protest, the government can notice and make decisions based on the opinion of the people. Secondly, back in history, people used civil disobedience, but if we're talking about the modern world this doesn't apply <em>that much.</em> We can also utilize the media. Millions use it, and a simple tweet or instagram post can spread the word to countless amounts of people, including the government. In fact, the government does actually use social media, giving citizens who want to speak out about their beliefs a better chance to do so. Hope this helps.
The main reason why the federal government was given the power to regulate trade between the states is because it would be impossible for issues regarding this interstate commerce to be settled in the states, since each state in question would act in its own self-interest.
A sheep-goat hybrid?
And it can be named
Feel