Disproof
The article is an attempt to discredit Alexey Navalny and his participation in a hearing at the European Parliameny, including by flatly denying the collusion between political and business interests around the Kremlin. This story is also consistent with recurring pro-Kremlin disinformation narratives about the poisoning of Alexei Navalny.
Oligarchs exist in today's Russia and they have close links with the Kremlin. As far as the three names mentioned by Alexei Navalny in front of the European Parliament, ample evidence exists.
Ahmet Usmanov, who originally comes from Uzbekistan, is involved in almost all lucrative sectors of the Russian business world, including the metal industry, banks and media.
Roman Abramovich, mostly known as the owner of the English soccer club Chelsea, was told by Putin himself to buy the club back in 2003. Boris Berezovsky, another Russian oligarch who turned against Putin, had uncovered various aspects of the Abramovich-Putin connection.
As far as Boris Rotenberg is concerned, he and his brother Arkady have been very close to President Putin since their childhood years and this connection has proven beneficial in their rise. Arkady Rotenberg, who was included in the EU sanctions list after Crimea's annexation in 2014, was also involved in a laundering operation through Barclays Bank which was exposed by the US Financial Crimes Enforcement Network (FinCen).