Hapkido was developed by Choi, Yong Sul, who lived in Japan as a boy and studied Daitō-ryū Aiki-jūjutsu... Choi... combined the techniques learned in Japan with the striking becoming popular in Korea (Tae Soo Do, Kong Soo Do, the 9 kwans, etc) to form Hapkido.
Your comment about the striking techniques that Choi taught is incorrect. Choi never studied any Korean or Japanese art after returning to Korea. The striking techniques he taught are ones that he learned in Japan. Most of Choi's original striking techniques bear little to no resemblance to the striking techniques of the karate-based arts.
It really isn't much of a stretch to say that Hapkido was influenced by Aikido when Hapkido's roots are Japanese.
It certainly is a stretch. It's also a non sequitur. There is no logic to this reasoning.
Following that logic, you might just as well say that hapkido was heavily influenced by sumo, because they both have Japanese roots.
So, I fail to understand what you mean when you say that I posted something without basis.
Because you did.
You said that hapkido is heavily influenced by aikido. Choi's original art, which you can call hapkido, yawara or a couple of other names (he eventually came to call it hapkido), had absolutely no influence from aikido. Choi taught faithfully the art that he learned in Japan, without outside influence and without the addition of techniques from other sources, despite what some say. For example, some maintain that the defenses against clothing grabs and the throws that Choi taught came from judo, and were added by Suh Bok Sub. This is incorrect. Those techniques are present in Daito-ryu, which has defenses against all manner of clothing grabs and an extensive throwing repertoire.
The additions to Choi's art that characterize modern hapkido came from other sources, most notably Kim Moo Wong and Ji Han Jae. But certainly not from aikido.
I'm sorry if this sounds brusque, but I think it's important to refute internet misinformation about hapkido. There's way too much of it.