Because no one has EVER injected the most toxic substance known to man into the human body to treat aging. Who would do such a thing? Or, how about Adriamycin? A toxic drug that will literally damage heart cells, just to fight cancer.
But, hey.... Trump didn't suggest those. He just generalized a disinfectant, which the media generalized that comment even further to come to the conclusion that he meant "people must inject themselves with Clorox to live".
Just the media doing what the media does best. Misinformation and opinion fueled by bias.