The government is involved. The CFAA and similar laws allow Facebook et al to crush anyone who attempts to break their stranglehold. That's exactly the problem. Alternatives to Facebook that may have otherwise been wildly successful were sued out of existence this way.

The government has given Facebook offensive weapons against competitors. They either need to respond by giving the consumer defensive weapons against corporations whose zeal for intellectual property seeks to block or subsume the consumer's access to the marketplace, or they need to remove their interference all together.