The 'That's How People Grow Up' singer urged "media-brand Britain" to "wake up", comparing the spirit to that of Nazi Germany in a scathing attack which also laid into "dazzling royals", "Lord and Lady Beckham" and "Sir Jamie Horrible".
Speaking to student magazine BounceSIN.com at the O2 Academy in Leeds, Powell disagreed with Babyshambles drummer Adam Ficek, who believes the former Smiths singer "can" get away with such comments.
"No he can't," Powell retorted. "Morrissey created a character and everybody jumped on board, and then he kind of went into his little cave. I'm not a big Morrissey fan."
The 42-year-old went on to brand Morrissey a "kn*b" and an "absolute pr*ck" for not talking to him backstage while he played with the New York Dolls during their 2004 reunion show.
"When I played with the New York Dolls, Morrissey ignored me at sound-check, and then we had a big meet and greet with everybody, and I was stood next to David Johansen from the New York Dolls. It was literally like meeting the queen," Powell recalled.
"But Morrissey stopped at Johansen, chatted to him for a bit and then walked away. Morrissey is a kn*b. He's an absolute pr*ck."
The 'Bigmouth Strikes Again' star has been a fan of the New York Dolls since he was in his teens.
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Watch Morrissey's music video for 'Irish Blood, English Heart' below: