All the proposed services/technologies would benefit the wider consumer base and the user but switching is too big an ask for many people. We need to encourage people into using "as well as" the global defaults. That will build the network effects that lower the cost of fully switching
An easier and bigger immediate impact would come from people replacing Chrome and google search with respectful alternatives, and/or replacing gmail or outlook with private services like proton or tuta.
Starve the surveillance machines a little bit.