-anarchy
-no leaders
-antipatriotism
These are political Anarchism, the belief in no established government, which generally leads to a collapse of patriotism (but anarchy is subject to easy conquest, hence there are no anarchist states in the world).
This is really a desired convenience for Anarchists, ideally there would be no war or crime; allowing each man to peacefully go about his business etc. But as this is essentially impossible without some government to regulate citizens (police/judiciary) and deter foreign invanders (armed forces, politics) it is wishful thinking.
This really is also unenforcable in an Anarchist system. It is just wishful thinking.
-no mass or organized relgion
Evidently your friend views organized religion as a bad thing, however any organisational approach is essentially anti-anarchy, so if he is an anarchist it is likely he will oppose all organisations.
-antimarriage
Again, he would oppose all organisations, including marraige.
So your friend is an
Anarchist. He does not believe in established states, religions or institutions (marraige etc.). He also appears to be a
Pacifist..