I have no reason to believe he said that but he did talk that way upon occasion about combatants against whom he had fought - the Mamelukes come to mind.
It is interesting to listen to the Marchand memoirs at the link below to see that Napoleon evinced the utmost respect for the British soldier even as their government had played a dirty, dishonest trick on him. They had promised him a ship and then they trapped him on it.
On that very ship, British soldiers were astonished to see Napoleon treat soldiers according to their merits and not according to their rank accorded from birth. Napoleon broke with British protocol to ask decent British soldiers to dine with him even if they happened to not be “nobility”.
This is the sort of thing British propaganda is likely to leave out of their accounts of Napoleon.
Learn the truth here:
https://www.thetanster.com/blog/2019/2/11/napoleon-memoirs-links