Australia have once again proven too strong for England, sealing their 14th consecutive Ashes series victory with a hard-fought win in Liverpool.
England made five changes to their line-up between the first and second Test, introducing AJ Brimson and Morgan Smithies, but the shake-up did little to slow down the Kangaroos' dominance.
The opening stages looked promising for England, with both teams limited to penalty goals early, but Cameron Munster broke through in the 48th minute before Hudson Young capitalised on a dropped Nathan Cleary bomb just four minutes later.
While the scoreboard told one story, Alexander was left unimpressed by Australia's execution.
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The Kangaroos committed 15 errors to England's 11, conceded nine penalties, and missed 49 tackles, with two players sent to the sin bin.
Alexander rated no Australian player above 6.5, giving Munster the highest score in his review.
His comments echoed those of Corey Parker, who had predicted a 3-0 series sweep before questioning the strength of the English side.
"Call it how it is, we are going to win 3-nil and we were always going to win three-nil," Parker said on SEN Breakfast with Vossy and Brandy.
When asked if NRL teams could defeat the current Australian side, the Penrith Panthers legend gave a blunt assessment, suggesting even sides like the Panthers, Broncos, and Storm would comfortably defeat them.
"On their form from yesterday, yes, they would," Alexander said.
"The Australian win over England - England's attack was horrid. It was sideways, they ran over the sideline. Australia were just better.
"I thought we defended well as a team because we were under pressure early, we didn't have much ball. However, our ball control was shocking. We made too many errors.
"If Cameron Munster was the best player for Australia, but I would've given him a six or a seven out of ten. When I thought longer, no one else deserved to get more than that."
The final Ashes Test between Australia and England kicks off at 1:30am AEDT on Sunday at AMT Headingley Stadium in Leeds.