Before the election, we were plagued by strikes from a number of sectors and the government did nothing to try and resolve them except increase hostility. The situation was getting worse and worse under the Conservatives.
Clearly they were going to re-appear and Labour was going to have to try and find a way through.
It did this as soon as possible with the Junior doctors, it's been settled, and teachers, who you dont mention, have accepted offers too.
ASLEF the main train union have nearly resolved the matter for the country as a whole now by negotiations recently conducted by Louise Haigh (Transport).
The remaining issue on trains is within LNER, who are not I repeat not threatening strikes for pay, but for working conditions.
Labour have been effective in resolving a mess left for them and its disingenuous to try to suggest otherwise.
I don't know what the Border Force are demanding or their reasons, and I don't know what they are:
But I would suggest its a case by case situation.