Can we ever have too much copyright protection?

Yes. The Federal government has gotten way too big, and our copyright law is a symptom of the expansion in the size and scope of the federal government.

_Today copyright law is seen by many as a form of corporate welfare 
that hurts innovation and hurts the consumer. It is a system that picks winners and losers, and the losers are new industries that could generate new wealth and added value.  We frankly may have no idea how it actually hurts innovation, because we don't know what isn't able to be produced as a result of our current system._

In fact, it's not about the growth of big government, it's about the evolution from a democracy into a corporatocracy where big business interests control the levers of power.