Horseeeeeeeshit. When Lewis performed at the Olympia Theatre in Paris in the 1970's, the tickets sold out virtually instantly. He has won Best Director awards on numerous occasions in France.
Film critic, Robert Benayoun, wrote: "I consider Jerry Lewis, since the death of Buster Keaton, to be the foremost comic artist of the time. He corresponds to his era both reflecting and criticising our civilization."
One of your "few critics" and maybe you aren't impressed, however
Director, Jean-Luc Godard, said: "Jerry Lewis is the only American director who has made progressive films, he is much better than Chaplin and Keaton." Godard aint chopped liver.
Lewis was popular in France and you're embarrassed to admit it. As lasbar said, he was popular in the past.