International diplomacy typically moves at a deliberately glacial pace. Right now we're in a situation where China appear to be becoming expansionist and a single leader state, and we have no idea what their ultimate goals are. They're setting course for an almost inevitable collision with the US, but we don't know how far they are willing to take that. Russia meanwhile has not only invaded another country, but directly and blatantly meddled in elections in both the US and UK and now is carrying out assassinations on UK soil provoking inevitable crashes in relations. In America we have a president who may well be under the thrall of Russia and who is making bizarre foreign policy decisions seemingly on a whim, while his appointees simultanteously strip the State Department bare doing major damage to US diplomatic abilities. The UK meanwhile are leaving the EU after another election Russia meddled in, prompting the real possibility that UK influence on the world (which is not irrelevant as you seem to imagine) could be heavily damaged. The UK is a member of the security council of course, and often in opposition to Russian strategic goals.
If you think all that leaves us in a 'predictable' situation then I have no idea what to say to you.
