For me the political part isn't the issue - the push notification itself is. I can't stand browser desktop notifications and similar useless distractions and have blocked every kind of ad and popup in Firefox. Now the browser itself circumventing this to push some stupid blog article to me that I never asked for is unacceptable to me. Would you be fine with your image viewer, video player or file browser to push messages and suggest blog articles to you without asking? Then why should a website viewer do it?

I just want web browsers to display content I requested, block ads and otherwise just don't try to do anything clever. Which worked pretty nicely in Firefox so far.

The campaign espouses it's "American Values", they specifically talk about US electoral interference, they specifically want to remove exemptions for politicians from censorship rules, and they also want to ban groups of anti-vaccers and "climate denialists" however those are defined from their platform.

You're badly representing what's actually going on here in an effort to sound pithy.