Do conservative voters just need a daily dose of misplaced resentment and rage to keep them going?

Yes. Conservative politics is (and always has been) the strategy of giving your followers someone to either fear, hate, look down on, or increasingly all three and then telling them repeatedly that they are the only party who can "fix" it. It's not about governing, it's about stoking anger and fear so that donors keep giving them money.

Pre-civil rights it was African Americans in the US and Indigenous people in Canada. Then it became homosexuals, then Mexicans, then migrants in general, then so-called "illegals" and refugees. Then 9-11 happened and it became Muslims. Then brown people in general. And now it's circled back around to LGBTQ+ and trans folk.

Pick your marginalized society of choice and insert it into the very same playbook that's always been used.

Little Pierre Poppinfresh isn't doing or saying anything that hasn't been Conservative policy from the very beginning. It's just that thanks to the Trump effect, he no longer has to be subtle about it like his predecessors did.