That makes no sense. No one sane wants to go back to a time where all mobile electronics had separate chargers, especially since the number of mobile devices we use on a daily basis is higher than ever before.
If anything, manufacturers that are able to provide working, compatible solutions should be preferred by consumers to those that don't, and the laws of economics will take care of the rest.
But some of those manufacturers have large loyal customer bases that will find ways to justify them even if they were to employ child labor, so there is that.