I work in healthcare, and there is a lot of anger around pay and conditions at present. There are a combination of factors, but the main ones are that just about every professional group within the NHS has lost money in real terms since 2010, with pay rises not matching inflation even in years when inflation was low (i.e. 1% pay rises for years, with 2% inflation), and there is nowhere near enough staff to provide god quality healthcare.
For Nurses, its approximately 8% down since 2010, for Doctors, its 9%. When you add inflation (10-11%), with a 5% proposed pay rise (based on Scotland's offer (for Nurses and other staff only, not doctors)), which would be generous any other year, results in a total loss in pay this year of about 13%. So earning almost 15% less than 12 years ago, with a NHS that is more under-resourced and more under pressure than at any point in the last 50 years, and a notable lack of appreciation for the efforts of the health service over the past 3 years. I think you can see why conditions are ripe for a strike. Historically health professions don't strike, however that precedent is gone - the Junior Doctors strike in 2016, the Northern Irish nurses strike in 2019/2020.
To answer the question posed, as a member of the healthcare profession, I understand anger around pay and working conditions all too well. People confuse the National Rail strike with the drivers, this is the support staff, the people who keep the lines running, not the drivers, and I wholeheartedly support their efforts in securing a better paydeal.
The Tories were rather fond of a certain phrase used to castigate Labour - "Fixing the roof while the sun is shining" (
https://policyexchange.org.uk/fixing-the-roof-while-the-sun-is-shining-osbornes-new-spending-rule/). Many will say "now is not the time", but in the past 12 years, the Tories have had plenty of opportunities to give inflation matching, or beating, pay rises to public workers, preventing a total overall loss of pay. I imagine people would still be frustrated with working conditions and a high inflation rate, but markedly less so, and more willing to weather this, if they had not lost money since 2010. But now? Everyone should have their pay restored to 2010 levels, matched to inflation. The government plays the poor pauper while having spending many billions on a failed track and trace system.
The Tories have been in power for 12 years. The roof has not been fixed, and the storm is coming.