I would say not only it doesn't help but is even worse than demanding entities to be regulated by legislators and leaving the platform free for misinformative(?) entities
But of course if you don't want facebook to make money(1), or it doesn't respect your ethical vision, then you're free to leave, knowing that it doesn't solve the problem
(1) the whole web is still full of like buttons, so you're making them money anyway
I have this kind of conversation with vegans I know most of the time, they boycott meat industry, without triggering any sort of regulation, to switch to agro products, then when put in front of agricultural companies employing clandestine labour without rights and contracts, they dodge it, as you can't boycott all food and eat rocks, boycotting is useless, regulations are king
Make these addresses non-routable in whatever way is most ergonomic for you and enjoy a less junky internet.
whois -h whois.radb.net -- '-i origin AS32934' | grep ^route
It isn't hard to cut someone out of your life on the internet.