> they don't break any laws
> file lawsuits
And here a glaring issue with this approach is apparent. Even _if_ the harassers meet the criteria for law-breaking, anonymity and civil suits having the burden of proof be on the plaintiff make this extremely difficult. I can think of any number of defenses, starting with "Someone guessed my WiFi password / took over my forum account."
It is far easier to pressure companies to de-platform hate than to individually find and file suit against the harassers.