NATO does not have a Cold War mentality. The Cold War ended over 20 years ago. It was characterized by the opposition of two ideological blocs, the presence of massive standing armies in Europe, and the military, political and economic domination by the Soviet Union of almost all its European neighbours.
The modern world does not feature competing ideological blocs: Russia has neither a credible ideology to export, nor significant international allies who support its aggressive actions in and around Ukraine.
The end of the Cold War was a victory for the people of Central and Eastern Europe and the former Soviet Union, and opened the way to overcoming the division of Europe. At pathbreaking Summit meetings in the years after the fall of the Berlin Wall, Russia played its part in building a new, inclusive European security architecture, including the Charter of Paris, the establishment of the OSCE, and the NATO-Russia Founding Act.
Over the past decades, NATO reached out to Russia with a series of partnership initiatives, culminating in the foundation of the NATO-Russia Council in 2002. No other country has such a privileged relationship with NATO.