Re NATO contributions: it is true that they increased during Trump’s tenure, but that is because it had been agreed in, I believe, 2014 (so pre/Trunp) that this would happen.
Can you provide empirical evidence for your other claims, please? Brcsuse it just reads like right-wing media fearmongering to me, but I’m happy to be proved wrong by evidence that is verified by responsible and independent bodies.
Re Putin: you’re right that he would dearly like to destabilise Europe and North America. That’s why Russia worked so hard to get Trump elected last time, and why it will do so again. Trump is an isolationist, who will, as a starting point, throw Ukraine to the wolves without a second thought, thus gifting Putin control over even more of Europe’s food and fuel markets.