said slightly more succinctly:
managers deciding that you will do daily stand ups, retrospectives and 2 week sprints is the EXACT OPPOSITE of team self-management
Do you have a source for that? I personally have never experienced that. In contrast, I have experienced that the best work emerges when true trust is ingrained in the organization/culture, meaning a) mutual respect on all levels and b) and willingness to criticize the work of others. These two points are not related to any levels. Senior management can deliver great value to their teams. It very much depends on how they are involved in the work.
Also note that no team can exist outside of the organization that it funds. A dev team of 5-7 devs + PM + UX will cost a company roughly 500-700k EUR/USD per year depending on location. If you want to work on your own ideas with your team and no management interference then go and found a startup.
I am not arguing that teams should work on their own ideas. I am arguing that there are many ways a team can deliver on the requests of senior management without using Scrum. Scrum is very dogmatic and this goes against the principles set out in the Agile manifesto.
Have you heard about Shape Up by Basecamp? Would love to get some experience accounts on that method.
Those processes exist for the benefit of the team and for the team to 'run' itself. There is no reason for management to be there. Stop doing that.
I think the main problem here is a lot of companies do this weird hybrid where Scrum processes are somewhat followed, but managers keep managing the team and sometimes even taking the role of product owner and/or scrum master as well, and that just doesn't work.
Based on my experience, Scrum is introduced to re-assure managers and senior management that teams are self-organised in the "right" way.