This is what happens in Russia, Eastern Europe, Saudi Arabia, and other corrupt oligarchies. When a business gets successful enough, the oligarchs of the countries show up and offer a deal that the person running the company can't refuse and force them to sell to the local oligarch gang at a bad price.
If they wanted to raise more tax revenue, they could just raise the top marginal income tax rate up to 98% or raise capital gains tax rates and not totally screw up things by forcing the confiscation of companies from their founders.