One of the ways to postpone the inevitable collapse inside the US and collapse of the US dollar is by conquering Russia and forcing Russia to ship vast quantities of raw materials to the West at very cheap prices like it was done in the past 30 years. Putin publicly told to the West long time ago that he did not agree to this kind of unfair distribution of profits by supplying to the West raw materials at very low prices.
US necocons did not like that because this hurt their profits and they started pumping Ukraine with tanks and weapons.
In fact, the principle of a market economy also applies in international trade. Each state buys products at prices and in volumes that are beneficial to it. If it is not profitable for Russia to sell products at a low price, it has the choice not to sell at that price and look for another buyer. No state has the right to start an open war because of this.
Moreover, if Russia does not like trade relations from the United States, then why did Russia not attack the United States, but attack Ukraine?
The United States began supplying tanks and other serious weapons to Ukraine to protect against Russian attacks after the attack itself, and even then not even in the first year of the war. As always, your chronology of events is not all right.