No you don’t, no it’s not, no they weren’t, and no they aren’t.
Apple has never had a majority market share in any segment. Ever. There was a time where they were popular in Japan and where they were popular in the creative fields, particularly print, advertising and film because of a few specialized applications (Quark, Final Cut, etc.).
They ended up popular in college campuses post iPod and popular with developers in the 2006/2007 time frame after they switched to x86 because the combination of x86 and Unix made for a pretty developer friendly box.
The new line of hardware has its problems, but that’s always been the case. The current line has a high failure on keyboards, the previous line had a problem with delaminating screens, the line before that thermal problems.
They are selling more today than any other point in history and it doesn’t seem to be slowing down.