I like the idea of Firefox, but the UI has always been awkward on macOS. It looks a little better, but I don't like the huge tab pills in the window header, or the popups if you linger for more than a moment on the tab pill or favorites.
Can you give some examples of these "extreme far right" beliefs, by which I assume you must mean beliefs that are so extreme that something like only 1% of the most right wing parts of the population could believe them?
It's not a mystery that targeted advertising works better than random advertising and therefore commands a premium. It's an unjustified leap from that to the scary sounding 'manipulation'.
If you're removed for a photo for race/sex reasons, I view it as a 'political' change, which is less personally insulting than modifying your face to look better (implying you are uglier than would be preferred).
I appreciate the libertarian take on this, which works well for high IQ people and people with good self control. It doesn't work for many without those attributes. Unrestrained gambling can ruin lives and families.