You must not watch many videos in your browsers then outside the odd one on Youtube. The reality out there is that Flash is still the main choice for delivering video. Flash is a necessary evil. It may be dying but for many it's still necessary and its removal from Firefox removes significant usability for its users.
And if iPad sales are any indication I don't think it's as big a deal as you make it out to be.
If I write some software that costs $999 and only works on HP/UX, it's not "Fuck Microsoft" or "Fuck Apple". It's "Fuck me."
I think they call it cutting off your nose to spite your face.