Corporate raiding is nothing new, and financialization does let it happen at a pace that it couldn't previously - but just saying "but that's capitalism!" is quitting
Worker owned collectives have the same problems, people want to acquire power and then use it to be ahead when strategies fail and someone has to take responsibility.
How do you prevent that looks different in a market economy than a planned one (planned ones having more widespread but also more small scale corruption issues like these) - but you still do need to do the work to prevent it.