First, let's not loose sight of the fact that this is a woman who makes her living by the column inch finding something to write about this week. Her livelyhood is literally predicated on having opinions that are galvanizing enough people will read them. So perhaps "hellscape" is a bit of a stretched metaphor.
One of the issues of living in close proximity with other people is that not everyone shares your sensibilities. There is absolutely a place for a community to say "ehh, that's a bit much. Please take it down". Unfortunately we have, in large part at the insistence of folks like Mrs. Pullmann, removed "the community"'s ability to do that. You are Racist, or micro-aggressing, or not welcoming, or fillintheblankphobe, or just a big meanie if you try (unless you are trying to restrict something on the "approved list of NAZI dog whistles"). SO our choices are now, realistically, deal with it, or make .gov do it, with the fines, prison, and men with guns. There's no middle ground of mores anymore.
Given those choices, I have to disagree with Mrs. Pullmann. I'm unwilling to send people with guns to enforce Halloween decoration rules, and so I'm unwilling to entertain the idea of trying to regulate them. Her complaint that it "should happen at less than big government level" is irrelevant, because we have dismantled the apparatus that used to do that. Even just zoning laws and codes end up with the use of force. The most cursory Google will find stories of people being evicted, forcibly, and their homes seized over thousands of dollars in fines that go back to lawn mowing codes. Not to mention our quarterly rant on all things HOA related.
What she needs to do is move out of the "diverse" town she lives in and find a community with folks that agree with her sensibilities on public displays. Then she wouldn't have to worry about this.
