This is striking:
Another problem is that almost all Western teachers of Buddhism are either nihilists or eternalists, and not actual Buddhist lineage holders.
This may or may not be true depending on the tradition and locality.
I've heard before that some Tibetan lamas have expressed dismay about the spiritual faculties of students in the west. This is probably related to the prevailing reality-world views which are inherently materialistic and foster adharmic views, doubt and scepticism rather than right views, conviction and intellectual prowess.
My experience in Asia would definitely affirm what is being said here. With the exception of Japan, Buddhism in places like Taiwan, Nepal and India is like night and day compared to what you have in the west. At the most basic level people have faith in the Triple Gem and express concern about their future rebirths, but in the west a lot of self-identifying Buddhists don't really accept even the essentials of Buddhadharma like rebirth and karma, much less having genuine conviction that liberation is possible. If you don't think samsara actually happens or that our actions direct our future rebirths, then liberation in the Buddhist context might as well be a fictional fantasy.
What makes matters worse is you have publishers publishing "Buddhist teachers" who teach false dharma and only reinforce wrong views.