You've got to think that if Trump wins, Putin wins, and Ukraine falls. Moldova will probably be next.
Israel gets free rein in Palestine with all of the horrors that entails.
China might fancy a crack at Taiwan too, if it sees America retreating from the world.
Domestically, and in Europe, the far right get a big lift, and an indication of how to get into power through disruption, division, and flat out bullshit (and a bit of Russian and possibly Chinese interference, of course).
The rich almost certainly continue to get richer, but for everyone else it's a bit more worrying.