"There is also talk that Russia is working to develop low-yield nuclear weapons and/or modernizing its nonstrategic nuclear weapons, perhaps with the intent of creating a class of nuclear weapons less likely to draw a nuclear counterattack and are therefore more “usable.”
Also, as I’ve already written, I don’t view flooding Ukraine with Western arms as a significant risk to the escalation ladder. That is not the case for force on force conflict with NATO, especially on Russia’s doorstep. Which again, is laid out in their doctrine.
To clear, I just said to start with those links. You should definitely branch out and spend a lot more time reading up, because clearly you haven’t yet.
Please, finish reading all those documents, and then read some more, and then show me all the white papers, academic articles, or think tank papers that support your position, or disprove mine.