It’s oversimplified on purpose. The message needs to be crystal clear, and it needs to be repeated so often that no politician can go into a Talkshow without having to explain themselves why they are not taxing the rich.
This is the only way to make progress here as a society. You need broad support here.
Having said that, I actually, earnestly believe that taxing the rich is a prerequisite to
- solving climate change
- having a working government
- reestablishing the social fabric of our society
- etc.
If you are curious to learn more how this is backed up by data, you can eg. read „toxisch reich“ by Sebastian Klein (unfortunately only available in German I think)
Wo Taxis