Earlier quoted context omitted.
It is not the tyranny of the majority, because a modern democracy protects and respects minorities, and the concerns of the majority are also into account. At least, that's how it should be.
Yes, in an ideal world. However, "modern democracies" like Switzerland implement tyranny: http://www.thelocal.ch/20160609/immigrant-family-denied-swis... http://www.thelocal.ch/20170109/annoying-anti-cow-bell-campa... (There are more sources for both, in case you don't trust this one) Direct democracy is good, but we still don't seem to know how to implement it right or make a responsible use of it.
This suggestion is unpopular among people who deny that there are facts and reality. These people exist both on the left (e.g. `social constructivism about science') and the right (e.g. recent trends among some Trump supporters) side of the political spectrum. Anybody who has no trouble with reality and has passed a drivers license should have no problems with it, though.