Why I Don't Just Stick with Vipassana?

During the last eight years, I have been only practicing consistently for maybe five years, and in those five years maybe an average of four hours a week. Why?

I could be very wrong about this:

• The Buddha and his followers speak of the liberation from suffering for all sentient beings, but this remains, at least in my limited understanding, an abstract thought, not a vision toward which a clear path is being carved.
• This is a big issue I have with Buddhism; it is an elite religion for human animals which seems to offer no practical solution for at least 99.9% of beings (primarily wild animals), other then generally directing towards compassion, which is very good!
• I don't think vipassana naturally leads to effective altruism and I think the world needs a holistic practice which does exactly that. It is also not very active in nature, see Buddhism tag for more.
• I think holistic understanding of self probably comes from looking at different elements of experience, not only bodily sensations, though for me they seem to be, with thoughts, the most important one.
• Vipassana still hold some religious aspects, still holds some believes that as far as I can tell are not grounded in logic and experience, such as karma, beings that live in celestial planes, etc. I strive for belivelessness.