The idea of genre in music is something that has been so engrained in me since I could listen to music, so it sounds weird to not have it.
There is one group that currently defines all genre barriers, their name is twenty one pilots. Yes, I wrote that the right way, that is the way their name is written in most publications.
Their music is technically defined as alternative, but, they have so many influences that include hip-hop and reggae.
While genres are a very important part of music and should be respected, they are not all that musicians should force themselves to follow.