Zach Schonfeld interviewed several
Looney Tunes experts, including Isadore “Friz” Freleng's daughter:
Shaw said she’s not aware of Yosemite Sam being Jewish — or of his real name being Samuel Rosenbaum. But the character did bear a striking resemblance to her dad. “My father never saw that in Yosemite Sam,” she says. “But everybody else thought that Yosemite Sam was absolutely my father. He had red hair when he was a kid. And he was very tiny — only 5-foot-4.” A short king.
"I considered all of his characters Jewish."