Decrease in population is not driven by food availability. People have less kids when they don't need them to ensure their subsistence in old age. You want the world population to decrease? Raise the standard of living in poor countries and work on lowering child mortality.
There will always be alternative marketplaces hosted by alternative web hosts that are willing to continue doing business with companies that are deemed dangerous to society...
...until banks and merchant processors cut off financial access to these "dangerous" entities and their service providers.
Wikileaks was a victim of this year's ago, and served as a great example of why cryptocurrencies are important.
It's a good thing, but I expect politicians to just use this as another excuse for more mass immigration. They've been using this narrative for decades now after all.
In Germany new employees usually have a probation period of 3 months, during which companies can pretty much fire them at will if they don't perform as expected.
I think that's almost always enough time to assess whether someone is a good fit for long term employment.