Its not just me. It all the other developers and IT folks I have worked with and all the companies they have worked at. I know no one who was denied meal breaks and other basic worker rights, with the exception of paid overtime due to a salary pay scheme. Have there been bosses who were a-holes, sure, that too. Might an a-hole somewhere have violated a labor law, sure. But that is the occasional anomaly not some sort of general rollback of worker rights to pre-union days, and such anomalies are easily handled by state labor boards.
I agree with my 40+ year union veteran grandfather. Unions once did very important work, but those battles are over and won. There are no serious efforts to roll back basic worker rights to pre union days. Unless one misrepresents the limits on collective bargaining by government employees. As even FDR admitted government employees are in a very different and special position compared to industrial workers and the same rights and methods should not apply.
Are there unresolved issues that unions could help resolve, sure. But such unresolved issues do not change the fact that many big issues are resolved and resolved by a much higher authority, government.
Its quite legitimate for people to fear a decline in the quality of living in the future but that is not due to lower union participation. It is due to governmental policies that foster the outsourcing of jobs overseas. Its not that workers are in general losing protections that were union issues a century ago. Its that workers are losing good factory and industrial jobs.
Or to put things simply. Given that unions won the big "battles" its natural that their "army" scale down in size and only find itself fighting small skirmishes. Again I reference my grandfather who was a 40+ year worker enrolled (1930s-70s) in a rather large and well known union. In his opinion the union was once important but "today" (1970s) its just a racket to collect dues and perpetuate itself, to serve itself, not to serve its member workers, not to maintain levels of worker tradecraft and skill. I had friend who worked at a small and very profitable corrugated paper container manufacturer in the 2000s. She said the owner and floor manager were pretty flexible, reasonable and fair with the workers. But a union organizer came by and convinced them to organize, they unionized, came under the umbrella of one of the large and well known organizations. And the flexible environment they previously enjoyed was replaced with a bureaucratic and micromanaged environment. The bonuses and other extra benefits they once received were replaced with a boilerplate contract negotiated far away and long ago. The workers on the floor quickly came to the opinion that they were lied to and screwed and regretted unionizing. Many who voted to unionize were saying they would vote to de-unionize as soon as the law allowed them to do so. Unionizing is no panacea. Its a myth to think it always improves things. In an anomalous abusive situation it might help workers to organize. Should they join a big well known union in such a situation, possibly not. They might be better served by a small and regional organization, a more local effort. Assuming of course that their grievances can't be resolved by the state labor board.