a few) people who decide.

autocracy isnt referring to "a few people who decide" it means when there is ONE ruler with absolute power.

Every government that wants to survive will suppress existential threats.

'Existential ' threats is not synonymous with controlling the economy, and controlling domestic politics

It is impossible to believe that at any time in the present or future that governments in US/Europe/Russia/China will ever return to an economy as decentralized as the economy in the 1950s, the 1850s, or any prior time.

It will happen when we have a just leader. And for the record your argument doesnt disprove anything i said. They still c0ompletely fit the definition of fascism.