Is it the case that there is only a single race of advanced extraterrestrial beings helping us in only a limited way, with warnings, that being the Reptilians living in the future on a future extension timeline, and will not visit us in the physical?

Unfortunately, and even though it will rub many the wrong way who believe there are many benevolent extraterrestrial races taking an interest in helping humanity, many of whom are here among us or incarnated, we can tell you with certainty that the only extraterrestrial group able to help is the future extension timeline of Reptilians because those in the future see the error of their race of beings, and that it will cost them their existence if the annihilation of humanity is carried out, and they are being allowed to help sound the warning as they have skin in the game, personally, being the descendants of the current Reptilians who are part of the Dark Extraterrestrial Alliance working against humanity. The many Starseeds described are a real phenomena, but they are beings of worlds that have been decimated or destroyed by the Extraterrestrial Alliance and have incarnated from the light, where they are marking time, hoping humanity can turn the tide and save the day here for all within the Milky Way Galaxy. That is the only way they have come to help, serving as fellow human beings with the same limitations as you have in being a physical form that is fragile and vulnerable to many kinds of injury, including death.