Not necessarily stupid. If a person was smart they might do an internet search to see if the information can be verified. And in this case information can be found that apparently veriies the idea
Conspiracy theorists, including those that center around the QAnon conspiracy, have also advocated for drinking a diluted form of bleach called Medical Mineral Solution, or MMS.
QAnon adherents falsely believe Donald Trump is secretly running a military operation to rid the government of satanic, child-eating cannibals, and many QAnon followers believe those same people are responsible for the virus. Prominent QAnon accounts celebrated Trump’s apparent nod to bleach consumption or injection, with one prominent QAnon YouTuber and MMS reseller calling it “a good ‘lung cleaner’” on Thursday night.
Facebook’s been inundated with these fake “miracle cures” for COVID-19 for months now (before the pandemic, they were pushed as anti-autism elixirs) and all roads lead to a widespread troll campaign by the loosely held together group of ideological shit-posters known as QAnon (a group the president’s been tacitly supportive of for years).
A quick parse of 4chan, 8kun, and other yucky places on the internet shows there’s been a months-long campaign to push the conspiracy that big pharma and the Democrats are suppressing information on how effective disinfectants are at combating the coronavirus. Trump, accordingly, is thus rebelling against the New World Order and its leader (Bill Gates) by letting the truth slip about these secret cures.
It’s more likely confirmation bias. Otherwise you have to believe that the POTUS would be on national TV just pulling shit out his ass, so to speak.