The thing to understand that objective journalistTM is merely a label, a brand name like Kleenex--applied to journalists in general but not descriptive of the nature of the person or his role.The First Amendment guarantees that the government has no role in determining who you choose to listen to or believe. That leaves you free to declare yourself a journalist, even an objective one, without government interference.
The interference you will encounter will come from the Establishment which calls itself by that objective journalistTM name, and which will exploit its PR power to heap scorn and ridicule on you as necessary to cause you to withdraw from competing with them on their turf.
Ha, ha, ha, ha, ha, ha, ha, ha, ha, ha, ha, ha, ha, ha, ha, ha, ha, ha, ha, ha, ha!