Obama is either incredibly gullible, or he is more than happy to repeat a debunked hoax for political purposes.
“I thought that there were enough guardrails institutionally that even after Trump was elected that you would have the so-called Republican establishment who would say okay, you know, it’s a problem if the White House isn’t — doesn’t seem to be concerned about Russian meddling, or it’s a problem if we have a president who is saying neo-Nazis are marching in Charlottesville, there are good people on both sides."–Barrack Obama, 6/7/2021
For background see:
Curiously, the rise of BLM rhetoric coincides with an increase in anti-Semitic attacks and anti-Asian attacks from Black suspects. Has President Obama ever condemned the racist idea that (only) Black lives matter?