Yep, because they're too stupid or gullible to work out that council budgets are limited by funding from central government, which has been drastically slashed since 2010.
You could see it in interviews in the media and even in posts on this forum leading up to the last election: Often mixing the economic issues in with social ones about identity politics etc - people absolutely fuming about the failures of the left; all the terrible things Labour had done or failed to do; how having voted Labour all their lives they were going to vote Tory for the first time because it was time for "a change". er - a change from the last ten years of Tory government, apparently. Or maybe they just hadn't noticed who was already in power.
You couldn't make it up, but the human capacity for stupidity never ceases to amaze. So I wouldn't be too confident of any of this changing any time soon. The government will take the money away from the areas that need it just as Sunak describes, those areas will become poorer, and the Tories will find somebody to blame. And people will believe them.
Still, they got Brexit done eh? That's gotta help.