Not amongst steam users it isn't.
Windows 10 has has only 5.5% market share less than Windows 7 64 bit, Windows 8.1 64 bit. Windows 7, Windows XP 32 bit, Windows 8 64 bit, Windows 8.1, Windows Vista 32 bit, Windows 8 and Windows Vista 64 bit added together.
If you only look at the most used non-Win10 OS then (7 x64, 8.1 x6, 8 x64) they add up to 3% less market share than Windows 10 x64.
http://store.steampowered.com/hwsurvey
In a couple of days, it'll be skewed even more in favour of Windows 10, which gained 3.41% market share in June 2016.
So no, Windows 10 isn't a failure in terms of market share, and it doesn't seem to be widely hated, because you can go back to your Windows 7 or 8.1 for 30 days after upgrading.