Comment by II2II

> American tech companies are making billions off these products that really are simple and could be replaced.

The trouble is that simple concepts are not necessarily simple to implement. Tuning software for performance (e.g. to handle a large user base), security, and maintenance are all resource intensive. Then you have to consider that large user bases have diverse needs, which results in more complex software. Then there are the largest hurdles of all, training people in the use of new software and interoperability during the transition.