The right to strike is obviously on the chopping block. But to be honest, I joined the picket lines and national marches on pay and conditions many years back and all that happened as a result was being down a day's pay for every day I joined the strikes.
The goverment ignored us as best as they could, the public loathed us because it inconvenienced them and got them in the shit with their own employers unable to understand that they needed childcare.
So I stopped joining strikes.
What I do now is much more effective for my own mental wellbeing. I effectively work to rule, with some minor exceptions like the odd bit of lesson prep or marking a set of exam papers while watching TV, but I start at 8, finish at 4.30 latest and while I work through most breaks and many lunches I rarely take work home.
The hard bit is saying no and showing work I mean it. I refused to cover for a colleague driven out by the profession in my gained time. I refused to take on extra marking for the mocks for a colleague who was off with stress when I got asked to. I make a note of all the times my "gained time" has been taken off me for intervention, exam cramming, sports days, PSHE days etc. so that when I get asked why the huge amount of work I'm meant to be doing during my gained time wasn't completed I can ask "so when did you want me to do these, exactly"? I also refuse to comply with ridiculous demands that have zero impact, like parking in an assigned spot or having all of my book boxes colour coordinated. I have had open arguments with SLT over workload and some of the more ludicrous demands and I challenge them when it's needed.
The other side of the coin is this: I can do all of these things because I am very experienced, so can plan and fully resource a lesson in 10min, and I am very good at my job in a shortage subject. I get away with a lot, because it would be much more of a ballache for my school to replace me than to accept that I am one of the more "militant" teachers in my school and mostly leave me be. Parents don't complain to the school about me (unless their darlings are one of those), but they do complain about endless cover, marking not being done and generally lack of staff - as they should.
I wish fewer of my colleagues were wet lettuces and did the same, because then things may change for the poor, young, fresh-faced graduates joining our profession who do not know how to stand up for themselves.
TL;DR: striking is mostly pointless these days; more teachers need to work to rule and stop being scared - we are in a strong position now to do this with no one to replace us.