What people are saying is workers need a say in how the workplace is run and companies spending millions convincing folk otherwise should be forced to stop.
Unfortunately unions will not represent my interests in a huge swath of other areas (meritocracy, politics, etc). So choosing a union just trades one set of shitty things for another. For all but unskilled workers, the benefits are basically an illusion imo
Many workforces in Australia are highly unionised. Unions have been largely effective - even in recent years - at using their collective bargaining power for the good of the worker. Hell, our ruling political party is literally called the Labor party. It has strong union ties and a history of passing pro-worker legislation. Union corruption exists as it exists in all areas where power can be had, but in Australia’s case you’d truly be throwing the baby out with the bathwater by saying “unions are bad!”, even in industries like tech where we’ve never really sought collective bargaining on a large scale, the universal protections ushered in by the union movement benefit all workers here. It sounds like you’ve fallen for the same propaganda as everyone else but you particularly think that you have “smarter” reasons. You don’t.
It is possible to see unions as both the source of some and solution to other forms of abuse.