"slaughter" is perhaps a strong term.

perhaps a more nuanced description might run something like this (taking a little inspiration from the video):

creating and maintaining **consumer** software with a very good user experience is expensive (relative to other tasks that people do) and takes a significant amount of time. therefore the creation and maintainance of this sort of software requires resources that are not clearly available to most open source efforts. the proprietary software that manages to do this is influenced at some level by where its creators and maintainers get their income from, and the development of the "free" model used in particular by google points in a direction where the software must allow/empower/enable behaviour by the software developers that are not in the users' best interest (e.g. selling data about the users).