After all, if there are aliens it means there are a great many of them, in this world on this planet only 2 forces?

There are many races in the universe. Some are aligned with our cause, others are not.

Read these articles from HP HC. I hope it will interest you

"The Reptilians, The Dragons & Father Satan":
https://ancient-forums.com/viewtopic.php?p=385856#p385856

"How To Treat Certain "Heavier" Facts In JoS, Like Aliens/Greys/Reptilians":
https://ancient-forums.com/viewtopic.php?f=24&t=76986

"The Reptilians?":
https://ancient-forums.com/viewtopic.php?p=241018#p241018

In theory there should be other spiecies of bipedal beings physically similar to humans, they should be found in some jungle or remote island.

Theoretically they are extremely stupid beings who cannot do basic math and are unable to understand it in any way.

I personally do not trust these species even though they pose no danger, but look at the jews what they have come to do.