It is fine to make a website about deprogramming from Buddhism, because it makes sense that they will need help with this, and that they are a large population.
However, the problem is that Buddhism has many negative associations and behaviors that we don't want to associate with Zevism. We lose more by associating with or "fixing" Buddhism due to the confusion this would cause, which is different than if Zevism was presented organically to them.
Although we can take steps to show how Zevism may appeal to Buddhists, we cannot actually conflate Zevism with Buddhism. This is both disingenuous and also waters down Zevism. Instead of mixing the "waters" of these two religions, therefore polluting Zevism, we should accelerate the movement of Buddhists who are ready to convert from their "pool" to our "pool" or community.
We don't want people to feel tricked, nor should we waste time on people who are not ready yet to convert. Out of those billion people, some may be ready, but not all.
If you are someone who has an interest in converting Buddhists, that is fine, but it shouldn't be done by trying to co-opt Buddhism. This creates the false impression of value within Buddhism, which can even backfire and make full conversions to Zevism even harder, because people will think there is more truth than there actually is within Buddhism.
Whatever Zevist origins Buddhism had are long dead and corrupted by now, therefore the image of what Buddha is is also corrupted and needs to be replaced, not a second chance. The people who can make the connections, or naturally possess Zevist values, still have a high likelihood of conversion.
Additionally to this, having a teaching within a teaching is harder to get spread than simply a new religion.
For example, in Korea, people in few decades became Christians. Christians would had harder time if they had going to prove something is something. New, full religion is easier to spread.
Creating a Zevistic perspective within any pagan-orinigated religion is simply saying "My way is better than your 1,000 masters." How many people will accept that? Instead say "All is lie. Buddhism is corrupted, now follow our brand new fully restoring religion." We shouldn't aim becoming a denomination. Denomination is death. We play at their ground, in their rules. Instead just say "I picked the good, so you can know." instead of trying to argue about their 1,000 corrupted masters vs. few masters. Nothing good could come from an already corrupted religion. Constant arguings instead of a new ground to bloom in.
If you say you must be a denomination, you already give up and state that the truth is in that religion, that is superior, after that point why psychologically that must have an effect? It is only emotional softening with no goal. "My neighbour Mr. Lao follows that Zevistic perspective within the Buddhism. Ok, cool. Other neighbour also follows another master with tons of texts." or "My neighbour is a Zevist. They are restoring, picking the Good, uncorrupted elements. It is truly universal." See the difference.