Trump's statements on these issues have always been self contradictory.

On the one hand he says Russia would never have dared invade Ukraine if he was President, yet he was also against military support for Ukraine before the full scale invasion, and says that Ukraine's plight is basically their and Europe's problem.

He was adamantly against bombing Syria in response to Assad using chemical weapons while Obama was president, then when they used chemical weapons as soon as he became President he bombed them for it.

He's advocated for the USA not getting involved in military conflicts, while also advocating for massive increases in military spending and capability.

This has always been his approach, say one thing while very often actively doing the other. Promote domestic manufacturing, while putting massive tariffs on the inputs on which American manufacturing depends, many of which are only available in the required quantities abroad even for current production.

Trump voters have been scammed by a self-professed scammer that's been successfully prosecuted for scamming, and they know it. They were quite happy for him to betray, backstab, double-deal and scam whoever he liked on whatever issue he liked, as long as it was people they didn't like or care about.