What makes the tech echosystem thrive is the flexible capital and labor model. Anyone can get a little money to chase their idea. The small ideas get starved for capital and labor until they get market validation. Then the capital and labor chases them. And that's how great companies grow so quickly in a land of startups.
Anything that restricts mobility of labor hinders this and should be fought. (Example: Non-competes, cost-prohibitive real estate, etc)
Anything that restricts mobility of capital should be fought too. To have capital available for great ideas, it should be easy to flee ideas that aren't working out. (This is also why share buybacks from mature companies are fine - the capital get recycled)