As a life long trade union member, I’d never cross a picket line, either visible or invisible.
I last went on strike about 12 years ago. I of course didn’t get paid for not working. My local authority employer in a Tory area insisted I paid them my days wage to keep my employment unbroken for my pension.
The local schools were on strike recently / shame shame shame on those who crossed the picket line.
Interestingly, if an increased payment is awarded, those who didn’t strike will get the increase too.
There’s no point in moaning about wages and not striking. Equal pay said the suffragette movement. Some things never change,