Complete nonsense. Of course Russia must not fight "us". I am not sure who "us" is but I assume European countries? European NATO countries dramatically cut defense spending after the end of the cold war because they erroneously believed that Russia did not constitute a threat anymore. European NATO countries in particular Germany also became dependent on Russia for critical energy supplies, again, this was because they did not believe Russia constituted a threat. Their erroneous thinking was that Russia would develop in the same way as Germany and Italy developed after WW2, and as Poland, the Baltics etc. developed after the cold war; becoming peaceful democracies not threatening their neighbors.
Why must Russia fight? Sweden and Finland became NATO members because of the Russian threat that was clear for all to see after the full scale invasion of Ukraine. Defence spending in Europe is now rapidly increasing because of the Russian threat, reversing the decline in spending after the end of the cold war. I am surprised you fail to see the clear cause and effect here. And you cannot make an equivalence between European NATO countries and Russia because there simply is no such equivalence. If European NATO countries had the same mindset as Russia they would not have cut defense spending after the end of the cold war, on the contrary they would have worked to further weaken Russia and tried to find ways to attack while Russia was weak. Instead Europe did the opposite of what your way of thinking would imply; Europe cut defense spending but also provided aid to Russia and invited Russia to cooperate with Europe, even inviting Russia to collaborate with NATO. Russia initially pretended to cooperate and instead used these opportunities to spy, launch hybrid warfare and cyberattack, and initiate conflicts and/or wars against Georgia, Moldova, and Ukraine.
NATO - Topic: Relations with Russia
United States Relations with Russia: After the Cold War
Exposing the myth of Western betrayal of Russia over NATO’s eastern enlargement - British Politics and Policy at LSE